238 Capt. A. C. MacGilchrist on Decapod Crustacea 



joint of the antennular peduncle ; the antennal scale is 

 lonjrcr and narrower ; it is about ^ lenj^th of the carapace, 

 and its greatest breadth is very little more than \ its length. 



mm. 



Length from tip of rostrum to tip of telson .... 144o 



Lengtli of rostrum 54 



„ carapnce 31 



,, fifth abdominal somite 5"8 



„ sixth „ „ 9 



„ telson 18 



H. oryx (A. M.-Edwards) differs from this species in 

 having spines on the third, fourth, and fifth abdominal 

 segments and antennular flagclla shorter than rostrum. In 

 H. carinatus (S. I. Smith) the rostrum is shorter; antennular 

 flagella are shorter than rostrum ; third and fourth abdo- 

 minal terga are produced posteriorly as spines. 



This species has been figured, and will appear in " Illus- 

 trations of the Zoology of R.l.M.S. ' Investigator,' '' Crust, 

 pt. xi.^ which is now being issued. 



Fam. Glyphocrangonidae. 



Glyphocraxgon, a. M.-Edwards. 



Ghjphocrangon longirostris (?) , Smith. 



G^yphocrangon longirostrii?, Smith, ' Albatross,' Dec. Crust. 1886, p. 51. 



Of this species, which is new to the Indian fauna, two 

 specimens (male and female) were trawled at Sta. 3.26, off 

 the Arakan coast. Bay of Bengal, 1100 fathoiTis. They are 

 smaller than the specimens described by Smith, but agree 

 with descriptions of this species except as regards the eyes. 

 In the Indian specimens the eyes are decidedly smaller 

 (length of carapace, including rostrum, about 8^ times 

 the greatest diameter of the eyes) and are not of a dark 

 purpl'sh brown, but of a washed-out purple or a tint 

 resembling blackberry much diluted with cream. 



Male. Female, 



mm. mm. 



Length from tip of rostrum to tip of telsoa. . 64 73 



Length of rostrum 14'8 17 



„ carapace, excluding rostrum .... 14 17 



Greatest diameter of eye 3'4 4 



Length of antennal scale 6-5 7'6 



Greatest breadth of antennal scale 30 4-4 



Length of tt Isou 122 14-2 



„ inner lamella of uropod 9 104 



outer ,, ,, B'5 9-5 



