II. Richanfson — Isopods of the Hermudas. 281 



dactylus. Second gnathopods have the nienis armed witli one 

 spine at its distal extremity on the posterior margin, and one on the 

 anterior margin ; the carpus armed with two spines on its posterior 

 and one on the anterior margin at the distal extremity; the margin of 

 the propodus armed with three spines on the posterior margin, and one 

 large spine and one small one at the distal extremity on the anterior 

 margin. The dactylus is serrate on its inner margin. Exopods are 

 present on both first and second gnathopods. The other legs are 

 beset with spines. 



The specimen is a female and has a large marsupium filled with 

 eggs, extending the length of the first four free segments of the 

 thorax. 



Onl}' one individual was collected by A. E. Verrill and party, in 

 Harrington Sound, Bermudas. 



Type specimen in Peabody Museum, Yale University. Cat. No, 

 3192. 



Apseudes propinquus Eiehardson, sp. nov. 



Plate XXXVII. Figures 6-9. 



Body narrow, elongated, surface smooth. 



Head with frontal margin produced in the middle in a long, acute, 

 deflected process, from base of which on both sides there is an 

 abrupt lateral expansion, the margin forming an outward curve 

 which extends to the base of the ocular lobe and then proceeds, 

 straight to the lateral margin of the head. Ocular lobe produced in 

 an acute process. Eyes large, black, occupying the whole of the 

 ocular lobe. 



First pair of antenna? with first joint of peduncle long, and 

 armed on inner lateral margin with two large spines and one small 

 one near the base, and on distal end of outer margin with one large 

 spine. Second joint less than one-third the length of first joint and 

 unarmed. Third joint one-half as long as second joint. Flagellum 

 composed of sixteen joints. Secondary appendage composed of 

 eight joints. Second pair of antennae with an exopod at base of third 

 joint of peduncle ; flagellum composed of ten joints. There is a 

 conspicuous spine on the epistoma. 



First two free segments of the thorax about equal in length, the 

 three following ones longer, increasing in length, the last segment a 

 little longer than the first two. The antero-lateral margins of all 

 the segments are acutely produced, those of the fourth and fifth ir^e 



