1901.] CRUSTACEA. OF THE " SKEAT EXPEDITION." 543 



o* 47 x 34. 6 47 x 33. <$ 40 x 28. $ 60 x 43-5. $ 58 x 42-5. 

 $ 57 x 43. 2 46 X 34. $ 43 x SO-5. $ 32-5 x 23. 

 Breadth taken is greatest breadth. 



XVI. Genus Cymo de Haan. 



23. Cymo andeeossyi Aud. 



Pilumnus ? andreossyi, Audouin, Descr. de l'Egvpte, p. 80, pi. v. 

 fig. 6 (1815). 



Cymo andreossyi, de Haau, Crust. Japon. p. 22 (1839) ; Alcock, 

 Journ. As. Soc. Beng. lxvii. 2, p. 173 (1SQS). 



Loc. Kelantan. 



A female, rather damaged. 



Dim. 10x8-5. 



Breadth taken is greatest breadth. 



XVII. Greuus TlIALAMITA Latr. 



24. Thalamita cbenata Latr. 



Thalamita crenata (Latr.), M.-Ed\v. Hist. Nat. Crust, i. p. 461 

 (1S34); de Man, Merg. Crust, p. 79 (1888); Lanchester, P. Z. S. 

 1900, p. 748. 



Loc. Pulau Bidan, Penang. 



Five males and two females. 



The following table serves to show the variation in respect to 

 the denticulatiou of the posterior border of the penultimate joiut 

 of the natatory legs :— 



Non-denticulate 



(Bight side only .... 

 Left side only .... 

 Both sides 



The number, position, and size of these 

 inconstant. 



Dim. 6 71 x 46. 6 OS x 45. d 63 x 

 o* 49x32. 2 57x37. $ 55x35-5. 



25. Thalamita dax.e Stimpson. 



Thalamita crenata, Dana, U.S. Expl. Exp., Crust, i. p. 282, 

 pi. xvii. fitr. 7 (1852). 



Thalamita dance, Stimpson, Proc. Ac. Nat. Bci. Philad. p. 37 

 (1858); de Man, Mergui Crust, p. 78 (1888). 



Thalamita itimptoni, A. Af.-Edw. Arch. Mus. x. p. 362, pi. xxxv. 

 hg. 4 (186] ). 



Loc. Pulau Bidan, Penang. 



A male of the species and a female of the variety stimpsoni 

 In the latter the denticulations on the posterior border ot l hi; 

 penultimate joint of the natatory legs are more regular and more 

 marked, and the l<>be.-» at the upper internal angle of tin- eye u - 

 itraighter and more traneterse. 



Dim. ' 39 > -J~>. I 41 > l'.~>. 



86* 



6*. 



?■ 





1 









1 



1 





1 



1 





2 









denticles is 



quite 



10. , 



3 55-5 



x 36. 



