1890.] G. M. Giles — Vescrijptions of new Indian Amphipods, 69 



A single specimen only having been obtained, the gnathites could 

 not be closelyexamined. 



The 2nd of the thoracic appendages is very small, not as long as the 

 antennule, and imperfectly subchelate. The 3rd is nearly twice as long 

 as the 2nd, but is scarcely at all stouter, and is provided with an 

 obliquely palmed subchela, the dactylopodite being minute and much 

 curved. The 4th and 5 th are ordinary ambulatory legs, moderately stout 

 and subequal to each other, and equal to the 3rd in length. The 6th 

 is barely as long as the 1st gnathopod, and is remarkable for its 

 basipodite, which is of nearly circular outline and very deeply serrate on 

 its posterior border. The 7th is nearly as long as the 2nd gnathopod, 

 and its basipodite has a tendency to the same form as that of the 6th. 

 Its basipodite is rather broader than long, but its borders are quite 

 smooth. The distal joints of each of the last three thoracic appendages 

 are armed with closely set, sharp, short spines. 



There is nothing remarkable about the first three ahdominal appen- 

 dages, and the last three are equally biramous, armed both on propodite 

 and rami with short, stout spines. The 4th is the longest of the three, 

 and the 5th, the smallest, while the 6th is remarkable for its short, 

 stout, almost spherical propodite, and for the size of its rami, which are 

 larger in all respects than those of the preceding abdominal appendages. 



AnONYX INDICUS, n. sp., PI. II, Fig. 5. 



The present species was dredged in 5 — 10 fathoms off the Seven 

 Pagodas, Madras, on the same occasion as Phoxus unciro stratus. In 

 colour it is of a pale earthy white, and it measures about 5 mm. in 

 length. 



The liead is small and oblong, its anterior upper part carrying the 

 large compound eyes. 



The thorax and ahdomen are subeqaal in length, but the abdomen 

 is much the deeper and stouter. 



The thoracic segments increase somewhat in length and depth 

 from before backwards, but are everywhere narrow. The first four 

 coxal plates are large, the fourth being the largest, and are each nearly 

 twice as deep as their corresponding segments. The last three are 

 markedly smaller and are much narrower than their segments. 



The first three ahdominal segments are large in all dimensions ; the 

 fourth is as long as the seventh thoracic segment, and the last two very 

 short indeed. 



The telson is laminar and double. 



The antennule is short, the peduncle, which forms the larger 

 half of its length, being barely as long as the head. Its first joint is 



