208 Mr. L. A. Borradaile — ^l^otes on Car ides. 



V. Definitions of New Species, 



1. Pandalus (^Plesionica) gracilis. 



Eostrum long, gently upcurved from base, bearing above 

 two strong teeth on a crest over the eye and eight spinules, 

 below a row of small sharp teeth. Eye wider than stalk, 

 with distinct ocellus. First leg simple and sparsely hairy. 

 Second wrist 9-jointed. Third abdominal tergum not pio- 

 duced into spine. 



Western Indian Ocean, 200 fath. 



2. Heterocarpus unicarinatus. 



Related to //. longirostris, MacGIIchrist, 1905, but without 

 the hinder three-quarters of the antennal carina. 

 Providence I., 637-665 fati). 



3. Heterocarpus affinis. 



Related to H. alpJionsi, Bate, 1888, but has (1) the ros- 

 trum much more strongly upcurved, (2) fewer joints in the 

 second wrists, (3) walking-legs considerably longer than tbe 

 antennal scale. 



Say a de Malha, 300-500 fath. 



4. Thalassocaris affinis. 



Related to T. lucidus (Dana), 1852, but has (1) the ros- 

 trum less strongly recurved, (2) stronger teeth on the an- 

 tennal scale, (3) the second hand shaped as in T. crhiitus. 



Maldives and Saya de Malha. 



5. Thalassocaris jnaldivensis. 



Rostrum at first descend i)ig and then horizontal, outreaching 

 antennal scale, ^, two teeth behind orbit. Suborbital and 

 antennal spines only. Antennal scale without teeth. Second 

 leg feeble and simple. No spine on third abdominal tergum. 



Maldive I.s. 



G. Thar maldivensis. 



Rostrum very short, w ith one tooth above and none below. 

 Supraorbital and antennal spines present. First leg in 

 female stout, simple, and shorter than third raaxilliped, in 

 male as long as body, granulate, stout, but with chela no 

 stouter than rest of limb, arm and handsubequal, fingers one- 

 quarter length of palm, on which they arc bent inward, each 



