4 8 



made by the Germah Southpolar Expedition, October 3i ,h 1901, when numérous specimens of 

 Hopl. Grimaldii Cout. were caught north of Tristan da Cunha, in the night, in only 5,4fathoms! 



Kty t o the species of the genus Hoplophorus H . M.-Edw. 



a x Third, fourth and fifth abdominal segments terminating in a spine. 



b l Inner margin of antennal scale simple. A tooth at the postero- 



lateral angle of the carapace. 



c\ Rostrum about as long as the antennal scale, often a little 



shorter; spine of 3 rd tergum, in adult specimens, hardly 



longer than that of 5 th ; lower angle of the pleuron of the 



i st abdominal somite not produced to form a tooth . . typus H. M.-Edw. 

 c„ Rostrum as long as up to i^-times the rest of the carapace; 

 lower angle of the pleuron of the i st abdominal somite, in 

 the male, usually produced to form a tooth. 



d x Spines of 3 rd and 5 th terga subequal longirostris Bate. 



(C. SrENCE Bate, Challenger Crustacea Macrura, 188S, p. 760, Plate CXXVII, 

 fig. 2). 



d„ Spine of 3 rd abdominal tergum, in adult specimens, very 



much longer than that of 5* grdcilirostris A. M.-Edw. 



(A. MlLNE-EDWARDS, in: Annal. Sc. Nat., Zool. 188 1, p. 6 and in: Recueil 

 de Figures de Crustacés nouveaux ou peu connus, 1883, PI. 29). 



b„ Inner margin of antennal scale with a barbed hook anteriorly. 



Rostrum i 3 / 4 -times as long as the rest of the carapace. No 



tooth at the postero-lateral angle of the carapace. Spine of 



3 rd tergum very much longer than those of 4 th and 5 th . . Grimaldii Cout. 



(H. COUTIÈRE, in: Bulletin Mus. Océanogr. de Monaco, N n 48, 1905, p. 1). 



a 2 Second, third and fourth abdominal somites terminating in a spine. 



No tooth at the postero-lateral angle of the carapace .... spinicauda A. M.-Edw. 



(A. MlLNE-EDWARDS, Recueil de Figures de Crustacés nouveaux ou peu 



connus, 1883, PI. 29). 



foliaceus M. J. Rathbun. 

 {M. J. RATHBUN, in: U. S. Fish Commission Bulletin for 1903, Part. III, 



Wash. 1906, p. 922, PI. XX, fig. 8). 



1. Hoplophorus typus H. M.-Edw. 



Oplöphorus typus H. Milne-Edwards, Hist. Nat. Crust. II, 1S37, p. 424, PI. 25 bis, fig. 6, 7. 

 Oplopliorus typus C. Spence Bate, Challenger Crust. Macrura, 1888, p. 762, PI. CXXVII, fig. 1 — is. 

 ? Oplopliorus brevirostris C. Spence Bate, 1. c, p. 766, PI. CXXVII, fig. 3. 



Stat. 17. March 17. 7°28'.5S., II5°28'E. Bali Sea. 1060 m. Bottom fine grey mud. 1 male. 

 Stat. 46». April 7. 8° o'. 5 S., u8°34'.7E. Flores Sea. 1600 m. Bottom mud. 2 females, one 



of which is ova-bearing. 

 Stat. 211. September 25. 5°4o'.7 S., I20°45'.5 E. East of Saleyer. 115S m. Coarse grey mud, 



superficial layer more liquid and brown. 1 female. 



