286 On Indian Deep-sea Dredging. 



Akist^OMORPHA, gen. nov. 



Rostrum manj-toothed ; an hepatic spine is present ; man- 

 dibular palp robust, with terminal joint subbif urcate ; antennal 

 scale small ; postero-lateral angles o£ abdominal pleura 

 second to fifth simple and unarmed ; dorsal carina of the last 

 four abdominal terga ending in a spine ; legs without exopo- 

 dites ; dactylopodites of the last two pairs setaceous ; bran- 

 chial formula as in Aristwopsis, according to Spence Bate. 



Type Aristeiis rostridentatus^ Sp. Bate. 



[19. Arista'omorpha rostridentata (Sp. Bate). 



Aristeus rostridentatus, Sp. Bate, 'Challenger' Macrura, 1888, p. 317, 

 pLli, $. 



A fine female was taken in a previous season off Port Blair 

 in the Andaman Sea, 271 fathoms.] 



Hemipenj£US, Sp. Bate (p.). 



20. Uemipenceus Carpenteri^ W.-M. 



Hemipenceus Carpenteri, W.-M., Ann. & Mag. Nat. Hist. (0) vii. 1891, 

 p. 189, ?. 



A female from Station 106, 1091 fathoms. 



Colour in life transparent orange. 



It has four spines to the rostrum, the additional spine being- 

 developed in front of the normal three. 



A young specimen from Station 111, 1644 fathoms, colour 

 in life orange, has the normal number of spines to the rostrum. 



A female from the Bay of Bengal, 1300 fathoms, has only 

 two teeth to the rostrum, the apical one being apparently 

 absent. 



Having only four females, and those differing, we are not 

 in a position to attempt the determination of the relation of 

 this species to other forms, and so leave it for the present in 

 Spence Bate's genus. 



Subfamily ? Bentbbsictmina. 



Gennadas, Sp. Bate. 



21. Oennadas parvus^ Sp. Bate. 



Gennadas parvus, Sp. Bate, Ann. & Mag. Nat. Hist. (5) viii. 1881, 



p. 191 ; id. ' Clialleuger ' Macrura, 1888, p. 340, pi. lix. 

 Gennadas parvus, Wood-Mason, Ann. & Mag. Nat. Hist. (6) vii. p. 189, 



? AmalopentBUS elegans, W.-M., he. eit. 



One male from Station 108, 1043 fathoms ,• another from 

 Station 109, 738 fathoms; and a third from Station 111, 

 1644 fathoms ; all of a uniform deep lake-colour. 

 [To be continued.] 



