ISOPODS OK NORTH AMERICA. 



659 



The outer branch is minute and is placed at tiie inner post-lateral anole 

 of the peduncle. The inner ])ranch can only l)e seen from the under 

 side, where it is inserted at the upper inner anj>le of the peduncle, and 

 extends the leno'th of the pedunch\ l)ut do(^s not <|uite reach the 

 extremity of the terminal abdominal s(»g-ment. 



Three specimens of this species were collected by th(^ Bahama expe- 

 dition, August 1. 11M»4, at ManoTove Cay, Andros. 



This species dili'ers from I*, carhiulatu.s Saussure in ha\'ing the 



Fig. 701.— PSEl'DARMADILLO DOLLFUSI. «, SECOND MAXILLA. X Slf. h, OlITEK LAMELLA OF FIRST 



MAXILLA. X 51f. c. Inner lamella of first maxilla. ;< 51|. d. Lateral view of abdomen 



AND last thoracic SEGMENT. X 91- C, MaXILLIPED. X 27^. /, FIRST MAXILLA. 27j. (/, MAN- 

 DIBLE. X 27^. 



epiraera of the first thoracic segment ending in a bifurcate process, 

 in having in the median line on the terminal abdominal segment one 

 tubercle followed by two in a transverse series instead of one, in hav- 

 ing the tubercle on the fifth segment of the abdomen largest, and in 

 not having the tubercles of the seventh thoracic segment ' ' triquetres. " 



The types are in the Museum of Comparative Zoology at Harvard 

 Universit3\ Cat. No. 6731. 



This species is named in honor of Prof. Adrien DoUfus, who has 

 done nmch work on the terrestrial isopods. 



