BRACK YURA. 411 



Tetralia glaberrima (HERBST, 1790) A.3, p. 223. 



Localities : Galle, one specimen ; pearl banks, Gulf of Manaar, two specimens ; 

 Navakaddu Paar, two specimens ; Muttuvaratu Paar, one specimen ; off Mutwal 

 Island, one specimen. 



Description: The above include three ovigerous females, one young female, one 

 adult male, and two doubtfully young males. 



Quadrella coronata, DANA, var. granulosa, BORRADAILE, 1902 (B.IIL, p. 266). 



Locality : Gulf of Manaar, six specimens ; Galle, deep water, three specimens. 

 Description: C.I. of two ovigerous females = 7'0 and 1375. 



Portunus tuberculatus, Eoux, 1830. 



Locality : Deep water off Galle and onwards, one specimen. 



Remarks. This genus (i.e., the Portunus of FABRICIUS) is new to the Indian fauna. 



Lissocarcinus polybioides, ADAMS and WHITE, 1848 A. 4., p. 19. 



Localities : South-east of Modragam, on weed-bearing oyster spat, one specimen 

 (adult c? ) ; Gulf of Manaar, two specimens (ovigerous ? and young <$ ). 

 Description: C.I. of ovigerous female = 9*5. 



Lissocarcinus orbicularis, DANA, 1852 A. 4, p. 20. 



Localities : Negombo, one specimen (ov. ? a) ; Galle, lagoon, one specimen (adult ? b). 



Description: C.I. of ovigerous female = 12 '00. 



Specimen (a) is labelled " black crab from mouth of Trepang," and specimen (b), 

 which is wound about with Holothuriaii threads, bears the label " black and white 

 crab from rectum of black Holothurian." 



Lissocarcinus laevis, MIERS, 1886 A. 4, p. 21. 



Localities : Pearl banks, Gulf of Manaar, ten specimens (a to g and n to p) ; coral 

 reefs, Gulf of Manaar, six specimens (h to m). 



Description : -The difference in size between (a) and (b), both adult females (the 

 latter ovigerous), is to be noted. C.I. of (a) = 1TOO ; C.I. of (b) = 7 '00. Apart from 

 this, variability is low in the above series. 



Lupocyclus rotundatus, ADAMS and WHITE, 1848 A. 4, p. 23. 



Localities : Off Kaltura, two specimens (a, b) ; deep water off Galle, four specimens; 

 coral reef, Gulf of Manaar, ten specimens (including c). 



Description: The series includes three ovigerous females, three adult non-ovigerous 

 females, three young females, five adult males, and two young males. C.I. of an 

 ovigerous female = 10*00. 



In the above specimens there are indications of ridges in similar positions to those 



3 G 2 



