A New Shrimp Host for Parabopyrella lata (Nierstrasz and Brender à Brandis, 1929) (Crustacea: Isopoda: Bopyridae) from the Florida Gulf Coast: A Novel Host-Parasite Relationship or a Case of Mistaken Identity?

Identification of a bopyrid isopod found on a specimen of Lysmata wurdemanni (Gibbes) showed that it was not conspecific with the only known bopyrid parasite found on that host, Parabopyrella mortensi (Nierstrasz and Brender à Brandis, 1929). Instead, it is identifiable with a congeneric species, Parabopyrella lata (Nierstrasz and Brender à Brandis, 1929 ), formerly known only from alpheid shrimp hosts. A brief discussion of the implications of this finding on the question of level of host specificity is given, and evidence suggesting an accidental occurrence of the parasite on the host, rather than a successful host switch

Micro-invertebrates (Phyla Sarcomastigophora, Gnathostomula, Gastrotricha, Rotifera, and Tardigrada)

44 p. ; 26 cm.Includes bibliographical references (p. 38-41) and index

A new species of Crinoniscus Pérez, 1900 (Crustacea: Isopoda: Crinoniscidae) parasitising the pedunculate barnacle Heteralepas newmani Buhl-Mortensen & Mifsud (Cirripedia: Heteralepadidae) with notes on its ecology and a review of the genus

The new species Crinoniscus stroembergi n. sp. belonging to the parasitic isopod family Crinoniscidae Bonnier, 1900, is described from a pedunculate barnacle host collected in the Mediterranean Sea. This is the first species of Crinoniscus Pérez, 1900 described from a host in the genus Heteralepas Pilsbry. The male cryptoniscus larva is distinguished from congeneric species by having a dorsoventrally flattened body with the posterolateral margins of the cephalon scarcely extending beyond the anterior margin of pereomere 1 (in contrast to C. cephalatus Hosie, 2008 with extended margins); articles 1 and 2 of the antennule being subequal in width and the anterodistal angle of antennule article being low and rounded; propodus of pereopods 6 and 7 having a sinuous dorsal margin that is distally narrowing and the posterior margin of the pleotelson being short and rounded. The mature females of species in Crinoniscus are of two basic forms: those with ventrolateral lobes on the pereomeres (C. alepadis (Gruvel, 1901) n. comb., and C. politosummus Hosie, 2008) and those lacking such lobes (C. cephalatus and C. stroembergi n. sp.). The mature females of C. stroembergi n. sp. can be distinguished from other species of Crininiscus based on their lacking lobes on the anterior end. The material examined includes the male and three female developmental stages of the parasite in the host, Heteralepas newmani Buhl-Mortensen & Mifsud. The mouthparts of the immature female are described and the feeding biology and effects on the host are discussed along with a review of feeding modes in species of the Cryptoniscoidea. Leponiscus alepadis is transferred to Crinoniscus; the latter genus now contains five species. A modified diagnosis of Crinoniscus is provided.publishedVersio

Class Gastropoda (exclusive of Opisthobranchia and Pulmonata), with supplements to Gastropoda (Opisthobranchia) and Bivalvia.

170 p. : ill. ; 26 cm.Includes bibliographical references (p. 131-152) and index.A complete, annotated listing of all primary and secondary type specimens of gastropod mollusks (exclusive of opisthobranchs and pulmonates) in the collection of the Division of Invertebrate Zoology at the American Museum of Natural History (AMNH) (as of December 31, 1999) is presented. Supplementary listings for bivalves and opisthobranch gastropods (previously covered in part 1) are also given. This catalog includes 1309 type lots, 18 lectotype designations, and illustrations for 12 previously inadequately illustrated type specimens and five species never before illustrated. New synonymy information is given for nine species, one species is shown to be a valid name, one new replacement name is introduced, and one neotype is suppressed with rediscovery of type material. An appendix of AMNH specimens previously incorrectly cited as types is also given. An index of genera and species is included for each class and subclass