. Bulletin - United States National Museum. Science. 282 NATIONAL MUSEUM BULLETIN 271 minate, coxae 1-3 quadrate; gnathopod 1 simple; telson oval, short, entire. Monogeneric. See Laphystiopsidae, Acanthonotozomatidae. Description.—Accessory jElagellum absent; body broad, not carin- ate, urosomite 1 elongate; rostrum large, mouthparts arranged into a conical bundle; mandible lacking molar and spine row; lower lip lack- ing inner lobes; palp of maxilla 1 reduced to a single article; palp of maxilliped reduced to two small articles; coxae 1-3 quadrate, coxa 4 acuminate; gnathopods feeble, 1
. Bulletin - United States National Museum. Science. 282 NATIONAL MUSEUM BULLETIN 271 minate, coxae 1-3 quadrate; gnathopod 1 simple; telson oval, short, entire. Monogeneric. See Laphystiopsidae, Acanthonotozomatidae. Description.—Accessory jElagellum absent; body broad, not carin- ate, urosomite 1 elongate; rostrum large, mouthparts arranged into a conical bundle; mandible lacking molar and spine row; lower lip lack- ing inner lobes; palp of maxilla 1 reduced to a single article; palp of maxilliped reduced to two small articles; coxae 1-3 quadrate, coxa 4 acuminate; gnathopods feeble, 1 simple, 2 weakly subchelate; uro- pod 3 biramous; telson small, oval, entire. Relationship.—This family is so closely related to Acanthonoto- zomatidae that they might be joined together as subfamilies. The Laphystiopsidae bear a 4-articulate maxillipedal palp, a man-. FiGURE 110.—Lafystiidae: Lafystius sturionis Kr0yer (Sars, 1895, pi. 134): a, lateral; b, dorsal view of head; c, upper lip; d, mandible; e, lower lip;/,g, maxillae 1, 2; /j,maxilliped; i,j, gnathopods 1, 2; k. uropod 3; /, 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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