• Title/Summary/Keyword: GAstropoda

Search Result 172, Processing Time 0.019 seconds

Eggs and Egg Capsule Morphologyof the Neptune Whelk, Neptunea constricta (Dall, 1907) (Gastropoda: Buccinidae)

  • Son, Min-Ho
    • The Korean Journal of Malacology
    • /
    • v.19 no.2
    • /
    • pp.111-115
    • /
    • 2003
  • Morphological aspects of the eggs and egg capsules of the neptune whelk, Neptunea constricta (Dall, 1907) (Mollusca: Gastropoda: Buccinidae) are described and illustrated with capsular dimension and enumerations of eggs and egg capsules based on the specimens collected from continental shelf of East Sea, Korea.

  • PDF

Three Unrecorded Species of Archaeogastropcda (Gastropoda) from Koreari Waters (한국산 원시복족목(복족강)의 3 미기록 종)

  • 최병래;윤숙희
    • The Korean Journal of Zoology
    • /
    • v.35 no.4
    • /
    • pp.484-488
    • /
    • 1992
  • Three species of Archaeogastropoda were found new to the fauna of Korea, and are described in this paper. These include Emarginulo crossicostato Sowerby, 1863, Collisello cassis (Eschscholtz, 18331, and Collonista umakusaensis Habe, 1950. As the result, the Korean marine Archaeogastropod fauna comprises 10 families, 67 species and 9 subspecies.

  • PDF

18S Ribosomal DNA Sequences Provide Insight into the Phylogeny of Patellogastropod Limpets (Mollusca: Gastropoda)

  • Yoon, Sook Hee;Kim, Won
    • Molecules and Cells
    • /
    • v.23 no.1
    • /
    • pp.64-71
    • /
    • 2007
  • To investigate the phylogeny of Patellogastropoda, the complete 18S rDNA sequences of nine patellogastropod limpets Cymbula canescens (Gmelin, 1791), Helcion dunkeri (Krauss, 1848), Patella rustica Linnaeus, 1758, Cellana toreuma (Reeve, 1855), Cellana nigrolineata (Reeve, 1854), Nacella magellanica Gmelin, 1791, Nipponacmea concinna (Lischke, 1870), Niveotectura pallida (Gould, 1859), and Lottia dorsuosa Gould, 1859 were determined. These sequences were then analyzed along with the published 18S rDNA sequences of 35 gastropods, one bivalve, and one chiton species. Phylogenetic trees were constructed by maximum parsimony, maximum likelihood, and Bayesian inference. The results of our 18S rDNA sequence analysis strongly support the monophyly of Patellogastropoda and the existence of three subgroups. Of these, two subgroups, the Patelloidea and Acmaeoidea, are closely related, with branching patterns that can be summarized as [(Cymbula + Helcion) + Patella] and [(Nipponacmea + Lottia) + Niveotectura]. The remaining subgroup, Nacelloidea, emerges as basal and paraphyletic, while its genus Cellana is monophyletic. Our analysis also indicates that the Patellogastropoda have a sister relationship with the order Cocculiniformia within the Gastropoda.

Prosobranch Family Velutinidae (Gastropoda) in Cold and Temperate Waters of the Northern Hemisphere: History, Biogeography, Evolution and Chorology

  • Gulbin, V.V.
    • Ocean Science Journal
    • /
    • v.40 no.1
    • /
    • pp.45-54
    • /
    • 2005
  • The history of investigation of the family Velutinidae from 1776 to the present day is briefly described in the last part of this review; the contemporary system of the family, consisting of 39 species and subspecies, belonging to 17 genera and subgenera, and three subfamilies, is presented here. A biogeographic analysis of the fauna has been made, the history of origin and development of the family, vertical distribution and relation to substrates have been described in this work.

Sinistras chois, a new genus and species of terrestrial cave snails from jeju Island, Korea(Gastropoda: Subulinidae)

  • Park, Gab-Man
    • Proceedings of the Korean Aquaculture Society Conference
    • /
    • 2004.05a
    • /
    • pp.510-511
    • /
    • 2004
  • A terrestrial cave snail (Gastropoda: Subulinidae), Sinistras chois n. gen., n. sp., from the Gungi-cave in Jeju Island, South Korea represents a monotypic genus, and is proposed as a new genus in the family Subulinidae. Diagnostic features of the genus include a sinistral shell, that has a minute-sized, elongate conic-shaped, apical microsculpture with low tubercles. The chromosome number and karyotype are 2n=56 and 8M+15SM+5ST, respectively.

  • PDF

Sexual Maturation of the Top Shell, Omphalius rusticus (Gastropoda: Trochidae), on the Western Coast of Korea

  • Lee, Ju-Ha
    • Proceedings of the Korean Society of Fisheries Technology Conference
    • /
    • 2000.10a
    • /
    • pp.244-245
    • /
    • 2000
  • The top shell, Omphalius rusticus (Gastropoda: Trochidae), is marine mollusk inhabiting underneath a rock in the intertidal zone of the coasts of Korea and Japan, and it is one of the edible gastropods. This species is a herbivorous animal. Up to now, there have been some reports on the Trochidae: aspects of classification, spawning periodicity, production, growth and size-frequency distribution of living populations, feeding, reproductive cycle, and induction of larval metamorphosis. (omitted)

  • PDF

Classificationand Description of Conoidea (Gastropoda: Neogastropoda) from Korean Waters (한국산 청자고둥상과 (복족강: 신복족목)의 분류 및 기재)

  • 최병래;제종길;이태환
    • Animal Systematics, Evolution and Diversity
    • /
    • v.13 no.2
    • /
    • pp.103-140
    • /
    • 1997
  • 최근 15년동안 전국에서 채집된 청자고둥상과를 동정, 분류하였다. 지금까지 기록된 한국산 청자고둥상과는 33종으로 본 연구에서 다음의 한국미기록 7종을 추가하였다. Etrema (Etremopa) streptonotus(Pilsbry, 1904), Pseudoetrema fortilirata (Smith, 1879), Mangelia(Guraleus) deshayesii (Dunker, 1860), Philbertia (Kermia) tokyoensis(Pilsbry, 1895), conus Capitanellus Fulton, 1938, Conus 림퍄연 Lama가, 1810, Terebra Lima Deshayes, 1857. 이로써 한국산청자고둥상과는 총 3과 21속 40종이 기록된다.

  • PDF