Bulletin of the Southern California Academy of Sciences
Open Access journal
ISSN (Print) 0038-3872
Published by Southern California Academy of Sciences [1 journal]
- New Genera in the Rhodomelaceae from the Central Pacfic
Authors: George J. Hollenberg
PubDate: Fri, 14 Nov 2014 08:50:35 PST
- Growth and Development of Scaidophycus stellatus Dawson
Authors: M. Neushul et al.
PubDate: Fri, 14 Nov 2014 08:50:34 PST
- Contrast Between the Pioneer Populating Process on Land and Shore
Authors: Maxwell S. Doty
PubDate: Fri, 14 Nov 2014 08:50:33 PST
- Studies in the Foliose Red Algae of the Pacific Coast II. Schizymenia
Authors: Isabella A. Abbott
PubDate: Fri, 14 Nov 2014 08:50:32 PST
- E. Yale Dawson 1918-1966
Authors: John S. Garth
PubDate: Fri, 14 Nov 2014 08:50:31 PST
PubDate: Fri, 14 Nov 2014 08:45:36 PST
- Some Life History Data on Several Species of Common Spiders from the
Jackson Hole Area of Wyoming
Authors: Donald C. Lowrie
PubDate: Fri, 14 Nov 2014 08:45:31 PST
- Holothurians of the Genera Elpidia and Kolga from the Canadian Basin of
the Arctic Ocean
Authors: Candido P. Agatep
PubDate: Fri, 14 Nov 2014 08:45:30 PST
- Late-Pleistocene Deformation in the Limekiln Canyon Area, Santa Susana
Authors: James E. Slosson et al.
PubDate: Fri, 14 Nov 2014 08:45:28 PST
- Recent Records of Water Birds in the Desert
Authors: Richard C. Banks
PubDate: Fri, 14 Nov 2014 08:45:27 PST
- Studies of the Blood of Ascidia nigra (Savigny) II. Vanadocyte
Agglutination and Its Effect Upon the Heart
Authors: James A. Vallee Jr.
PubDate: Fri, 14 Nov 2014 08:45:26 PST
- Gill Structure in the Caecilian Genus Gymnopis
Authors: Marvalee H. Wake
PubDate: Fri, 14 Nov 2014 08:45:25 PST
- Description of a New Subgenus of Osmia (Hymenoptera: Megachilidae)
Authors: Roy R. Snelling
PubDate: Fri, 14 Nov 2014 08:45:24 PST
- Notes of the Life History of Philotes rita elvirae (Lepidoptera;
Authors: John Adams Comstock et al.
PubDate: Fri, 14 Nov 2014 08:40:26 PST
- Notes on the Early Stages of the Barberry Geometrid Moths, Genus
Coryphista, and the Description of a New Subspecies of C. meadii
Authors: John Adams Comstock
PubDate: Fri, 14 Nov 2014 08:40:25 PST
- Otoliths and Other Fish Remains from a Long Beach, California, Pliocene
Authors: John E. Fitch et al.
PubDate: Fri, 14 Nov 2014 08:40:24 PST
PubDate: Fri, 14 Nov 2014 08:40:23 PST
- Underwater Sounds Associated with Aggressive Behavior in Defense of
Territory by the Pinfish, Lagodon rhomboides
Authors: David K. Caldwell et al.
PubDate: Fri, 14 Nov 2014 08:40:18 PST
- Elasipod Holothurians of Antarctica I. Genus Amperima Pawson 1965
Authors: Candido P. Agatep
PubDate: Fri, 14 Nov 2014 08:40:17 PST
- The Pupa of Rhaphiomidas terminatus Cazier (Diptera: Apioceridae)
Authors: Charles L. Hogue
PubDate: Fri, 14 Nov 2014 08:40:16 PST
- Notes on Paracimbocera robusta Vandyke (Coleoptera: Curculionidae)
Authors: Elbert L. Sleeper et al.
PubDate: Fri, 14 Nov 2014 08:40:15 PST
- An Endocranial Cast of the Miocene Dog, Tomarctus, from the Fossil Beds of
Authors: George E. Jakway et al.
PubDate: Fri, 14 Nov 2014 08:35:18 PST
- A New Species of Neofungella (Bryozoa, Stenolaemata) from Southern
Authors: William C. Banta
PubDate: Fri, 14 Nov 2014 08:35:17 PST
- Self-Regulatory Growth in the Green Alga Enteromorpha prolifera Formae
Authors: Andrew Kier
PubDate: Fri, 14 Nov 2014 08:35:16 PST
- Studies of the Blood of Ascidia nigra (Savigny) I. Total Blood Cell
Counts, Differential Blood Cell Counts, and Hematocrit Values
Authors: James A. Vallee Jr.
PubDate: Fri, 14 Nov 2014 08:35:15 PST
- Additional Notes on Snakes Taken in and Near Joshua Tree National
Authors: Richard B. Loomis et al.
PubDate: Fri, 14 Nov 2014 08:35:13 PST
PubDate: Fri, 14 Nov 2014 08:35:12 PST
- Buzz Pollination of Cassia quiedondilla (Leguminosae) by Bees of the
Genera Centris and Melipona
Authors: Stephen L. Buchmann
PubDate: Fri, 14 Nov 2014 08:32:30 PST
- A New Species of Comatacarus (Acarina: Trombiculidae) from Central United
Authors: M. Lee Goff et al.
PubDate: Fri, 14 Nov 2014 08:32:29 PST
- Range Extensions of Some California Marine Isopod Crustaceans
Authors: Ernest W. Iverson
Abstract: New range extensions are given for 22 species of California marine isopods. Brief ecological data and intermediate localities are included. Dynamenella dianae and Excirolana kincaidi are added to the California fauna. New localities are given for four species previously known only from the type localities.
PubDate: Fri, 14 Nov 2014 08:27:17 PST
- Observations on the Lithodid Crabs of Peru, with Description of Two New
Authors: Janet Haig
Abstract: Eight species of Lithodidae (Crustacea, Decapoda, Anomura) are reported from deep water off Peru. Two are described as new and a third is illustrated for the first time. The other five species, which were briefly cited from Peruvian waters (del Solar, 1972), are discussed in more detail. Attention is drawn to morphological changes that take place with growth in family Lithodidae. Distribution of the tropical component of the west American lilhodids is discussed.
PubDate: Fri, 14 Nov 2014 08:27:16 PST
- Two New Species of Land Snails from the Pinaleno Mountains, Arizona
Authors: W. O. Gregg et al.
Abstract: Two new species of land snails are described from the Pinaleno Mountains in southeastern Arizona.
PubDate: Fri, 14 Nov 2014 08:27:15 PST
- A New Species of Fossil Nuttallia (Mollusca: Bivalvia) from the Pliocene
of Sonoma County, California
Authors: Barry Roth et al.
Abstract: Nuttallia jamesi, new species, is described from strata assigned Pliocene age in the Sebastopol quadrangle, central Sonoma County, California. The species is similar to N. nuttallii (Conrad), late Miocene to Recent of California and Baja California, and to N. olivacea (Jay), Miocene to Recent of Japan, but differs from both in having an acuminate posterior end. The genus Nuttallia is restricted, in both Recent and fossil occurrence, to the north Pacific basin. It represents a temperately adapted branch of the predominantly tropical Sanguinolariinae.
PubDate: Fri, 14 Nov 2014 08:27:13 PST
- The Systematics and Distribution of Marine Tubificidae (Annelidia:
Oligochaeta) in the Bahia de San Quintin, Baja California, with
Descriptions of Five New Species
Authors: David G. Cook
Abstract: Marine Tubificidae (Annelida, Oligochaeta) from Bahia de San Quintin, Baja California, are described, and their distribution in the bay noted relative to the mean particle size of the sediments. Tubifex postcapillatus, n. sp. is characterized by its simple-pointed dorsal setae, and short hair setae which occur in postclitellar segments only. The setal pattern and details of the genital anatomy distinguish Thalassodrilus belli, n. sp. from other members of its genus. Both of these species are associated with the finest sediments which are located mainly at the north end of the bay. Limnodriloides monothecus, n. sp. with its single, mid-dorsal spermatheca unique to this genus, occurs mainly in silts and very fine sands (4 to 5 ø). Limnodriloides verrucosus, n. sp. possesses a papillate body wall previously unknown in the genus, but reminiscent of the Peloscolex condition; it occurs in all sediment types in the bay (3 to 8 ø) but is most abundant in the 5 to 6 range. The dominant oligochaete. Limnodriloides barnardi, n. sp., closely resembles Limnodriloides winckelmanni Michaelsen, especially in its possession of elongate, grooved spermathecal setae enclosed in vacuolated sacs; the species are distinguished by details of their penial structures. Limnodriloides barnardi, n. sp. occurs in all sediment classes but its optimum range appears to be in 4 to 6 ø sediments.
PubDate: Fri, 14 Nov 2014 08:21:58 PST
- Tube Dwelling Behavior in the Marine Annelid Phragmatopoma californica
(Fewkes) (Polychaeta: Sabellariidae)
Authors: Peter Alan Roy
Abstract: Abdominal tori position the body centrally in the lube, permitting lateral and dorsal body cilia to draw in water ventrally. pass it up between the parapodia, and expel it dorsally. Withdrawal involves contraction, peristalsis, and backward parapodial walking. Extensions of the paralhoracic palae effect forward locomotion, and parathoracic aeurosetae cause body twisting. In defecation abdominal neurosetae pass fecal strings anteriorly where a body retraction expels them ventrally from the tube.
PubDate: Fri, 14 Nov 2014 08:21:57 PST
PubDate: Fri, 14 Nov 2014 08:21:56 PST
- Nutritive Value of Three Common Chaparral Plants for the Woodrate, Neotoma
Fuscipes and N. Lepida
Authors: Robert M. Chew et al.
PubDate: Thu, 13 Nov 2014 16:36:59 PST
- The First Report of the Giant Polynoid Polychaete Hololepida magna Moore
Authors: Donald J. Reish
PubDate: Thu, 13 Nov 2014 16:36:58 PST
- Relative Stem Water Potentials of Three Woody Perennials in a Southern Oak
Authors: James P. Syversten
Abstract: Dawn stem water potentials of Quercus agrifolia, Juglans california, and Heteromeles arbutifolia were measured with a pressure chamber during the drought of 1972. Individuals of a particular species growing at the top of a slope had lower water potentials than those at the canyon bottom. These differences became greater as the season progressed and soil drying occurred. During the summer months when evaporative demands were high, leaf water deficits were not overcome during the overnight equilibration period as soil-plant water potential gradients existed in the dawn hours. Juglans and Heteromeles on the south-facing slope were able to maintain higher diurnal stem water potential maxima than corresponding individuals on the north-facing slope. This apparent anomaly may result from the more xeric conditions on the south-facing slope inducing acclimation or providing selection pressure for drought resistance of these two species.
PubDate: Thu, 13 Nov 2014 16:32:15 PST
- Systematics of Pterocladia media from California
Authors: Joan G. Stewart
Abstract: The finding of unilocular cystocarps on herbarium specimens of Gelidium crinale var. luxurians from California requires thai the plains be referred to the genus Pterocladia. Pterocladia media Dawson (1958) is expanded for this purpose. Gelidium sinicola Gardner (1927) may possibly also belong here. Additional collections of this Pterocladia species are noted.
PubDate: Thu, 13 Nov 2014 16:12:03 PST
- Hermit Crabs from the Tropical Eastern Pacific. I. Distribution, Color,
and Natural History of Some Common Shallow-Water Species
Authors: Eldon E. Ball et al.
Abstract: Observations on distribution, natural history, and color in life are presented for 12 species of hermit crabs (Diogentdae and Paguridae) collected from the intertidal and shallow subtidal between Paita, Peru and Bahia de hi Magdalena, Baja California, Mexico.
PubDate: Thu, 13 Nov 2014 16:12:01 PST
- An Unusual Breeding Aggregation of Frogs, with Notes on the Ecology of
Agalychnis spurrelli (Anura: Hylidae)
Authors: Norman J. Scott et al.
Abstract: In August 1970, a breeding aggregation comprising an estimated 13,000 Agalychnis spurrelli was observed at a man-made pond on the Osa Peninsula, Puntarenas Province. Costa Rica. Apparently this extraordinarily dense breeding population was the result of ideal conditions offered by the artificial breeding site: the lack of the more effective predators (fish) in a large permanent body of water surrounded by numerous suitable oviposition sites and continuous forest which is immediately accessible for post-metamorphic dispersal. A high degree of larval success followed by normal post-metamorphic mortality, unaffected by density dependent factors, could lead to the high breeding population observed. Some males at the site were seen to scrape previously laid eggs off leaves. Additional observations and experiments demonstrated a definite parachuting ability of A. spurrelli, a behavioral and morphologic adaptation shared to a greater or lesser degree with other highly arboreal tree frogs.
PubDate: Thu, 13 Nov 2014 15:56:59 PST
- An Unusual Breeding Aggregation of Frogs, with Notes on the Ecology of
Agalychnis spurrelli (Anura: Hylidae)
Authors: Norman J. Scott et al.
Abstract: In August 1970, a breeding aggregation comprising an estimated 13,000 Agalychnis spurrelli was observed at a man-made pond on the Osa Peninsula, Puntarenas Province, Costa Rica. Apparently this extraordinarily dense breeding population was the result of ideal conditions offered by the artificial breeding site: the lack of the more effective predators (fish) in a large permanent body of water surrounded by numerous suitable oviposition sites and continuous forest which is immediately accessible for post-metamorphic dispersal. A high degree of larval success followed by normal post-metamorphic mortality, unaffected by density dependent factors, could lead to the high breeding population observed. Some males at the site were seen to scrape previously laid eggs off leaves. Additional observations and experiments demonstrated a definite parachuting ability of A. spurrelli, a behavioral and morphologic adaptation shared to a greater or lesser degree with other highly arboreal tree frogs.
PubDate: Thu, 13 Nov 2014 15:56:58 PST
- Influence of Habitat Structure on a Population of Voles
Authors: George O. Batzli
Abstract: Analysis of dispersion patterns for a population of the California vole (Microlus californicus) within its preferred habitat indicated higher densities associated with patches of a perennial grass (Elymus cinereus) than with the dominant annual (Bronuis rigidus). Although this pattern occurred throughout the year, the only demographic differences between subpopulations occurred during the warm, dry summer. More adult (heavier) voles were found in Elymus during August, a result of improved survival and growth. The greater availability of preferred food (green forage) in Elymus patches suggested that the demographic improvement resulted from better nutrition. Such patches serve as refugia for voles when populations are low. thus assuming increased significance.
PubDate: Thu, 13 Nov 2014 15:56:57 PST
- Maternity Habits of Myotis leibii in South Dakota
Authors: Merlin D. Tuttle et al.
Abstract: Twelve active roosts containing 27 Myotis leibii were located in and near the Badlands National Monument. South Dakota. Active and inactive roosts were characterized as to temperature inside and outside of the roosts, position and size of opening, slope facing, internal dimensions, and soil type. Two roosts each contained more than two individuals; all others held single individuals or a single female and her young. A possible instance of twinning was observed. Young bats were characterized as to weight, length of forearm, amount of pelage, and flying ability.
PubDate: Thu, 13 Nov 2014 15:56:56 PST
- Bats of Margarita Island, Venezuela, with Zoogeographic Comments
Authors: James Dale Smith et al.
Abstract: Sixteen species of bats are reported from Margarita Island, Nueva Esparta, Venezuela. These include two species of emballonurids, one noctilionid, two mormoopids, nine phyllostomatids, one vespertilionid, and one molossid. Accounts including natural history and taxonomic comments are given for each species. The chiropteran fauna of Margarita Island is compared with the bat faunas of the adjacent Venezuelan mainland and islands off the northern coast of South America, including Trinidad and other Antillean islands. It is concluded that the chiropteran fauna of Margarita Island represents an attenuated mainland fauna.
PubDate: Thu, 13 Nov 2014 15:56:55 PST
- Reproductive Behavior of the Gray Whale Eschrichtius robustus, in Baja
Authors: William F. Samaras
Abstract: Patterns of movement and repetitive behavior of gray whales in a specific area of Scammon's Lagoon suggest precopulative ritual. Individuals move into a specific area of the lagoon in the early morning and conspicuously engage in spyhopping. which is associated with the gray whale's courtship behavior. Whales expose their heads above the surface and remain motionless in this position for at least ten seconds before submerging. A lull in activity in the late morning and early afternoon is followed by intensified pairing and copulation.
PubDate: Thu, 13 Nov 2014 15:56:54 PST
PubDate: Thu, 13 Nov 2014 15:56:53 PST
- Tantilla taeniata (Bocourt): an Addition to the Snake Fauna of El Salvador
Authors: Larry David Wilson
PubDate: Thu, 13 Nov 2014 12:47:02 PST
- Notes on Some Bats from a Cave on Peninsula Paraguana, Venezuela
Authors: John O. Matson et al.
PubDate: Thu, 13 Nov 2014 12:47:00 PST
- Notes on the Arboreal Activities of Peromyscus boylii in Inyo County,
Authors: John O. Matson
PubDate: Thu, 13 Nov 2014 12:42:07 PST
- A New Species of Clymenella (Polychaeta: Maldanidae) from Tomales Bay,
Authors: James A. Blake et al.
Abstract: A new species of Clymenella is described from shallow subtidal sediments in Tomales Bay. Comparisons are made with related Clymenella species.
PubDate: Thu, 13 Nov 2014 12:42:06 PST
- Comparative Study of the Lancets and Sheaths of Some Aculeate Hymenoptera
Authors: Dennis M. Poore
Abstract: A comparative study was made of the stinging apparati of 102 species of aculeate Hymenoptera from the following families: Scoliidae, Vespidae. Eumenidae. Pompilidae, Sphecidae, Andrenidae, Halictidae, Megachilidae, Anthophoridae, and Apidae. Analysis was confined to the presence or absence of barbs: number, arrangement, and types of barbs. The sheaths were compared as to the types of setae and the presence or absence of segmentation.
PubDate: Thu, 13 Nov 2014 12:42:05 PST
- Parasitic Bopyrid Isopods of the Amphi-American Genus Stegophryxus
Thompson with the Description of a New Species from California
Authors: John C. Markham
Abstract: Stegophryxus hyptius, heretofore known only as a parasite of Pagurus longicarpus in New England, is recorded infesting P. longicarpus in Georgia P. annulipes in North Carolina and Georgia, and P. bonairensis and P. miamensis in southern Florida. The only known specimens of Stegophryxus thompsoni, the types, from an unknown host in Chile, are redescribed. A new species from California and Baja California, S. hyphalus is described as a parasite of Parapagurodes laurentae and P. makarovi. These three species, the only members of the genus, are illustrated in detail and their distribution discussed.
PubDate: Thu, 13 Nov 2014 12:42:04 PST
- Evolutionary Relationships and Biogeography of the Macroteiid Lizards
(Family Teiidae, Subfamily Teiinae)
Authors: William Presch
Abstract: The evolutionary relationships of nine genera of macrotciid lizard (Ameiva, Cnemidophorus, Kentropyx, Dicrodon, Teius, Callopistes, Crocodilurus Tupinambis, and Dracaena are discussed based on an analysis of 25 osteological character states. A phenetic scheme based on the average linkage technique ami an evolutionary sequence diagram arc presented. The result places the nine genera into two groups: A. Ameiva, Cnemidophorus, Kenlropyx, Teius, and Dicrodon; B, Callopistes, Tupinambis, Crocodilurus, and Dracaena. Group B is considered the most derived group of genera; Dracaena being the most derived genus. An analysis of the fossil record of the macroteiids in association with present distributional patterns suggests thai the ancestors of the macroteiids arose in North America and entered South America at the close of the Mesozoic Era. With the closure of the Panamanian Seaway in Early Pliocene, movement of Ameiva north and Cnemidophorus south, occurred Subsequent geologic activity and contraction of the tropical climate, are responsible for for present distribution of the genera.
PubDate: Thu, 13 Nov 2014 12:37:05 PST
- Xiphiorhynchus kimblalocki, a New Billfish from the Eocene of Mississippi
with Remarks on the Systematic of Xiphioid Fishes
Authors: Harry L. Fierstine et al.
Abstract: Xiphiorhynchus kimblalocki, a new species of extinct billfish from the Eocene of Mississippi, is described. This is the first record of Xiphiorhynchus outside of western Europe, and the material consists of a well-preserved rostrum, three partial vertebrae and two fin spine fragments. Xiphiorhynchus kimblalocki is compared with other living and extinct billfish and appears to be intermediate in morphology between the Xiphiidae and Istiophoridae. Various genera of fossil billfish are critically discussed and we suggest that the Blochiidae, Paleoihynchidae, and the "Cylindracanthus-group" should be placed in Xiphioidei Incertae sedis until better evidence indicates that they are billfish. We speculate that Xiphiorhynchus is an extinct offshoot from an unknown pre-Eocene common ancestor between Xiphiidae and Istiophoridae and is closer to the Istiophoridae than to the Xiphiidae. We also agree with earlier workers that the lineages of the Xiphiidae and Istiophoridae run back separately into basal Eocene times and that any common ancestry to each other and to the scombroids must have been prior to the Eocene and may have extended into the Cretaceous.
PubDate: Thu, 13 Nov 2014 12:37:04 PST
- The Cheliceral Muscles of the Scorpion Heterometrus fulvipes
Authors: A. B. Vays
Abstract: The movements of a scorpion chelicera are brought about by eighteen muscles. Observations on the origin, insertion, and action of each of these muscles have been recorded.
PubDate: Thu, 13 Nov 2014 12:37:03 PST
- Descriptions of Two New Species of Euschoengastia (Acarina: Trombiculidae)
from California and Baja California Norte, Mexico
Authors: William J. Wrenn et al.
Abstract: Two new species of Euschoengastia are described: E. hardyorum n. sp., off Dipodomys microps from Death Valley National Monument, 4 mi E Wildrose Ranger Station, Inyo Co, California, and E. marginalis n. sp., off Neotoma lepida from Lower Covington Flat in Joshua Tree National Monument, Riverside Co, California. Included is information on host-chigger relationships, ecology, seasonal occurrence, and distribution of both species.
PubDate: Thu, 13 Nov 2014 12:37:02 PST
- A New Species of Polychaetous Annelid (Arabellidae) Parasitic in Diopatra
ornata (Onuphidae) from Southern California
Authors: Raymond R. Emerson
Abstract: A new species of polychaetous annelid of the family Arabcllidae is described. Various sizes were found parasitic in the coelomic cavity of a single specimen of the onuphid polychaete Diopatra ornata collected near Port Hueneme. Movement of the parasite may occur through the septal walls of the host hut not laterally through the dorsal or ventral mesenteries.
PubDate: Thu, 13 Nov 2014 12:31:59 PST
PubDate: Thu, 13 Nov 2014 12:31:58 PST