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Free Content Sponges from the Gulf of Mexico

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Abstract:

In 1948, a collection of sponges was made by the Marine Laboratory of the University of Miami in the eastern Gulf of Mexico. Twenty-two stations were studied, at depths from 6 to 20 meters, in the area between Dry Tortugas and the northeastern part of the Gulf. The collection comprises 52 species in 41 genera, all within the class Demospongea. Of these, 11 species are new: Myrmekioderma styx, Thalyseurypon vasiformis, Dictyociona adioristica, Echinostylinos unguiferus, Axinella polycapella, Homaxinella waltonsmithi, Prianos tierneyi, Spirastrella coccinopsis, Prostylissa spongia, Scolopes megastra, and Unimia trisphaera. The new name Neamphius is provided to replace the preoccupied generic name Amphius. The new genus Unimia is described, with U. trisphaera n.sp. as type species. The genus Darwinella is removed from the Aplysillidae to the Darwinellidae. Xestospongia calyx (Schmidt) and X. halichondrioides (Wilson) are synonymous with X. muta (Schmidt). Tenacia micropunctata Burton (not collected in the Gulf), incorrectly transferred earlier to Thalyseurypon, should be placed in the genus Eurypon. It is suggested that: Dictyociona clathrata and D. terraenovae (neither collected in the Gulf) be transferred to the genus Thalysias; the order Halichondrina be dropped and most or all of its families removed to the Poecilosclerina; the genus Paracordyla be dropped in synonymy to Scolopes; Stelletta tuberosa Hentschel (not collected in the Gulf) receive the new name Myriastra hentscheli. Additional description is provided for a number of species. An analysis of the sponge collection by stations is included.

Document Type: Research Article

Publication date: January 1, 1952

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