The taxonomy of two host-specific, cryptic dendronotoid nudibranch species (Mollusca: Gastropoda) from Australia including a new species description

Willan R.C. (1988) The taxonomy of two host-specific, cryptic dendronotoid nudibranch species (Mollusca: Gastropoda) from Australia including a new species description. Zoological Journal of the Linnean Society, 94 1: 39-63. doi:10.1111/j.1096-3642.1988.tb00881.x


Author Willan R.C.
Title The taxonomy of two host-specific, cryptic dendronotoid nudibranch species (Mollusca: Gastropoda) from Australia including a new species description
Journal name Zoological Journal of the Linnean Society   Check publisher's open access policy
ISSN 0024-4082
Publication date 1988
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1111/j.1096-3642.1988.tb00881.x
Volume 94
Issue 1
Start page 39
End page 63
Total pages 25
Subject 1103 Clinical Sciences
Abstract Two host-specific, extremely cryptic, small dendronotoid nudibranchs from Australia are described and classified, and their phylogenetic position within the superfamily is discussed. Lomanotus vermiformis Eliot 1908 subsists exclusively on the hydrozoan Lytocarpus philippinus (Kirchenpauer, 1872). Lomanotus stauberi Clark & Goetzfried 1976 is newly synonymized with L. vermiformis. Marioniopsis platycteneasp. nov. subsists exclusively on the alcyonacean Parerythropodium hicksoni Utinomi 1972. Marianina rosea (Pruvot-Fol 1930) is relocated to the Tritoniidae (wherein it forms a monotypic subfamily, Marianinae) because of possession of palmate rhinophoral clavi, the principal apomorphy of the Tritoniidae. The validity of using the form of the digestive gland as a basis for dividing the Tritoniidae is questioned since it is acknowledged that this organ has progressed from a solid (holohepatic) arrangement to a dispersed (cladohepatic) arrangement in parallel in several major nudibranch lineages; form thus offers merely homoeoplaseous phylogenetic characters. Separation of right and left digestive glands appears to be one of the first steps in the simultaneous and interdependent evolutionary processes of internal detorsion and external 'aeolidization' in nudibranchs.
Keyword crypsis
Dendronotoidea
Lomanotus
Marioniopsis
Nudibranchia
Opisthobranchia
phylogenetics
taxonomy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collection: Scopus Import
 
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