Crustacea Decapoda and Stomatopoda. 



J83 



females, it is usually shorter and in rare cases is less than one and a half times the 

 length of the carapace. The dorsal teeth, excluding that at the apex, vary in number 

 from 4 to 10 (usually 5 to 9). In the specimens from Tinnevelly the number appears to 

 be decidedly lower than in those from other localities, while de Man has recorded ex- 

 amples with an exceptionally high number from the Bari R. in Flores. There is, 

 almost without exception, a single subapical dorsal tooth : I have seen single speci- 

 mens with 2 and 3 teeth in this position. 



The ventral teeth of the rostrum vary still more, from 17 to 42, the majority hav- 

 ing from 23 to 32. Here again the specimens from Tinnevelly seem to have, on the 

 average, a lower number than the others, but the material is not sufficiently abundant 

 for accurate determination of the point. 



The numbers of teeth in specimens from the five principal localities are as 

 follows :— 



Number of 

 dorsal teeth. 



Number of specimens. 



.2 







é 



-a 



p 



3 



> 



c 





•à 



(In 



4 

 5 

 6 



7 

 8 



9 

 10 



I 

 2 

 6 

 3 



2 

 2 



2 



5 



23 

 19 



3 



6 



II 



18 



15 



3 



I 



I 

 2 



7 

 2 



I 



Number of 

 ventral teeth. 



Number of specimens. 







V-i 





 > 



s 



t 



Vellaney. 



'S 



a) 



17 

 19 

 20 



21 

 22 

 23 

 24 

 25 

 26 



27 

 28 



29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37 

 38 

 41 

 42 



I 

 I 



3 



2 



I 

 3 



I 



I 



I 



- I 



2 



I 

 '. 



7 

 g 



É 



i 





I 



3 



I 



5 



3 



4 



II 



6 



I 

 3 

 4 



3 



I 

 I 



I 

 I 



I 

 I 

 I 

 I 



I 



2 



3 



2 



1 



The antennal scale is from 3f to 4 times as long as wide. The lateral process of 

 the antennular peduncle is short, not reaching the end of the basal segment. The 

 second segment is about twice as long as broad. 



In the third maxilUpedes the epipod is long and straight ; the terminal segment 

 bears from 8 to 10 spines. 



The carpus of the first pêra;eopôds is from if to 2 titnes as long as wide and is 



