13 



Hooghly Delta. J. Wood-Mason. 



Singapore. J. Wood-Mason. 



Bombay. Purchased. 



3(1. Peneus indicds var. meeguiensis, de Man. Plate II., fig. 4. 



Jourii. Linn. Soc, Zool., XXII. 1888, p. 287, pi. xviii. fig. 8, xix. fig. 1. 



Dr deMan, who at first regarded this form as distinct, has since (in Max 

 "Weber's Zool. Brgebn. einer Reise in Niederl. Ost-Ind. II., p. 511) united it 

 with P. indicus Bdw. Dr J. R. Henderson concurs. 



Large adults of this variety are distinguished by the rostral crest, which 

 is so high as to assume a broadly-triangular form : beneath the crest the rostrum 

 is nearly straight. 



Adult males are further distinguished by the form of the dactylus of the 

 external maxillipeds, which joint is hardly half the length of its propodite and has 

 a subacute point. 



This form reaches a length of over 8 inches. 



There are 66 specimens in the collection, registered as follows : — 



3188 



5 

 8154 



Karachi. Karachi Museum. 



Types. Mergui. J. Anderson. 



2481 



-^ Hooghly Delta. J. H. Row. 



4366-70 4376-79 



9 9 



3944-70 5061 



q : -jTr- Orissa and Ganjam. 



No Localit/. J. Wood-Mason. 



421-426 



10 

 4373-75 



"Investigator." 



Palk Strait. 



Bombay. F. Day. 



Sb. Peneus indicus var. penicillatus. Plate IL, fiff. 5. 



Peneus penicillatus, Wood-MaaoQ US. (n.-ime only) : Aloock, Ann, Mag. N.H. (7) XVI. 1905, p. 525. 



This variety is distinguished by the form of the 8rd or external maxillipeds of 

 the male. In these appendages the carpus and propodite are much shorter and 

 coarser than they are in indicus and merguiensis, but on the other hand the dac- 

 tylus is a long tapering joint from li to 2f times the length of the propodite, and 

 the pencil of hairs occupying the groove on the inner side of the dactylus is of 

 almost corresponding length. 



