. Bulletin - United States National Museum. Science. 388 NATIONAL MUSEUM BULLETIN 271 ;—-The Stenothoidae, Cressidae, and Thaumatel- sonidae have enlarged coxae 2-4, more elongate telsons than do Pagetinidae and coxa 1 is small and hidden by the following coxae. The Pardaliscidae have biramous third uropods. The Eophliantidae and Phliantidae lack mandibular palps, the former having cylindrical bodies, the latter having depressed bodies. The Pagetinidae bear some resemblance to Sebidae in mouthparts, uropods, telson, and coxae but Sebidae have chelate gnathopods, elongate
. Bulletin - United States National Museum. Science. 388 NATIONAL MUSEUM BULLETIN 271 ;—-The Stenothoidae, Cressidae, and Thaumatel- sonidae have enlarged coxae 2-4, more elongate telsons than do Pagetinidae and coxa 1 is small and hidden by the following coxae. The Pardaliscidae have biramous third uropods. The Eophliantidae and Phliantidae lack mandibular palps, the former having cylindrical bodies, the latter having depressed bodies. The Pagetinidae bear some resemblance to Sebidae in mouthparts, uropods, telson, and coxae but Sebidae have chelate gnathopods, elongate third artcles of gnathopod 2 (with one exception) and well-formed plates of the maxillipeds. Key to the Genera of Pagetinidae These genera, possibly synonymous, are based on characters which may be conditions due to different methods of preservation, mounting technique, and Figure 139.—Pagetinidae: a, head and gnathopod 1 of Pagetina genarum K. H. Barnard (1932). Upper lip: b, Heterocressa monodi Nicholls (1938). Mandible: c, Heterocressa. Maxilla 1: d, Pagetina, e, Heterocressa. Maxilliped: /, Pagetina; g, Heterocressa. Perec- pods 1,3,5: h,j,k, Pagetina. Gnathopod 2: i, Pagetina. I, Pagetina, dorsal view of tel- son and uropod 3. Uropod 3: m, Heterocressa. Telson: n, Heterocressa. Lower lip: 0, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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