of Indian Dredging. 477 



very short distance over the third joint. The third joint is 

 slender and very long, longer than the other three segments 

 taken together ; both it and the fourth joint, which is short, 

 are unarmed. 



Flagellum long. Epistome well developed. 



The chelipeds are long and slightly asymmetrical ; coxa 

 unarmed; the ischium has one small spine above at its 

 proximal end, two small spines below at its distal. Merus 

 very long, flattened laterally, and curved on itself ; at the upper 

 border of its distal end is a prominent spine. Carpus un- 

 armed. The palm has a large spine distally on its upper 

 border. The chela? are narrow and long (but not so long as 

 the palm) ; on the right side the margins are sharp, finely 

 dentate, with curved crossed tips. On the left side the chelse 

 are imperfect. 



Second pair of legs slender, with small perfect chelse ; 

 remaining legs slender, with short curved dactyli. 



With the exception of a few hairs on the last and penulti- 

 mate joints all the legs are naked. 



The female genital openings are easily seen, and there is a 

 tubercle in the position of the male openings. 



Eggs large, blue in life. 



The outer plate of the large swimmeret has a diagonal 

 suture running obliquely from its outer to its posterior border. 

 There is a spinule at the outer end of this, but none along 

 the course of the suture. No spinules on the inner plate. 

 The telson is longer than broad, with a rounded end. 



Colour in life reddish, in spirit yellowish white. 



Adult d- 



millim. 



Length of rostrum 5 



„ carapace to base of rostrum 16£ 



„ abdomen with telson 32 



„ chelipeds : 



Ischium 4 



Merus 16 



Carpus 7 



Palm 11 



Fingers 10 



One adult female dredged off the north-east of Ceylon in 

 Sta. 266, in 542 fathoms, lat. 8° 36' 15" N., by long. 

 81° 20' 30" E. 



I have placed this new species in the genus Calocaris of 

 Bell, in spite of its having a styloid scaphocerite on the 

 peduncle of its second antennas, a point which Faxon has 



Ann. & Mag. N. Hist. Ser. 7. Vol. vi. 32 



