288 H. Richardson — Isopods of the Bermudas. 



three preceding segments, and are about alike in size. The sixth 

 segment is short, not quite as long as any one of the first three seg- 

 ments. The seventh is very short, being one-third the length of the 

 sixth segment, and in both specimens examined is devoid of legs. 



The segments of the abdomen are distinct, the first five together 

 not being as long as the sixth thoracic segment. The last thoracic 

 segment is abruptly narrower than the sixth, and is likewise some- 

 what narrower than the abdominal segments. 



The terminal segment of the body is linguiform, the posterior 

 margin evenly rounded and smooth. The inner branch of the 

 uropoda is likewise rounded posteriorly with a smooth margin. The 

 outer and superior branch arches over the telson. Both branches, 

 as well as the terminal abdominal segment, are fringed with hairs. 



The first pair of legs are cheliform, the propodus unarmed. The 

 second and third pairs are also cheliform, but smaller, with the pro- 

 podus armed on the posterior margin with five spines. The three 

 following pairs of legs are ambulatory in character. The seventh 

 pair are wanting. 



Two specimens were collected by A. E. Verrill and party at the 

 Bermudas in 1898. Both specimens are adult females, the marsupium 

 in one being very large and extending the entire length of the thorax, 

 from the second segment. 



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



Anthelura affinis Ricliardson, sp. nov. 



Plate XXXVIII. Figures 29-32. 



Body narrow, elongate. Head with small median point. Eyes 

 distinct, situated in antero-lateral angulations. 



Antennse of both pairs with flagella consisting of several joints, 

 and fringed with long hairs at the tip. Maxillipeds consist of five 

 joints. 



First three thoracic segments about equal in length. Three fol- 

 lowing segments somewhat longer, and sub-equal. Seventh segment 

 fully half the length of preceding segment. 



All the segments of the abdomen distinctly defined. Terminal 

 segment narrowly linguiform, roundly triangulate at the apex and 

 with smooth margins. 



Outer superior branch of uropoda long, oval, reaching quite to the 

 extremity of the terminal abdominal segment, and arching over the 

 telson. Inner branch with posterior margin widely rounded and 



