ORTMANN: CRUSTACEA OF SOUTHERN PATAGONIA. 66 1 



(entrance of Straits of Magellan), and at Cape Blanco (47-48° S.) ; on 

 the western coast it seems to extend to Chili. 



This species has been recorded from New Zealand, Auckland Islands, 

 Kerguelen Islands, Marion and Prince Edwards Islands. Range in depth : 

 0-150 fath. 



On the Australian coast it is represented by the very closely allied 

 species : H. ovatits Stps. (see Stebbing, 1. c). 



Remarks. — The young J* from San Julian, and the three young <^ from 

 Punta Arenas, of the lengths: 2.5-3-3.5-4 mm., agree completely with 

 Dana's H. pubescens, which is said to be one tenth of an inch long (= 2-3 

 mm.) : the form of the carapace is more rounded (less transverse than in H. 

 piauatiis), the walking legs (and sometimes the carapace) are slightly pubes- 

 cent, and the sides of the male abdomen are parallel, with the exception of 

 the last joint. A young J>, 6 mm. long has the typical form of the male 

 abdomen of //. planatiis, but the form of the carapace is less transverse. 

 The pubescence is not present. Larger males (from 10 mm. upward) 

 acquire by degrees the greatly swollen chelipcds. Our largest male has 

 the following measurements: Length 13 mm., width 16 mm. 



Family ATELECYCLID^ Ortmann. 

 HYPOPELTARIUM Miers. 



Hypopeltarium spinosulum (White). 



1886 Hypopeltarium spinosidum Miers in : Rep. Voy. Challenger, v. 17, 



p. 211. 

 1 89 1 Pelferiou spiniilositm (sic) A. Milne-Edwards in: Miss. Cap Horn, 



V. 6, p. 17. 

 1900 Peltariou spinosulum Stebbing in : Pr. Zool. Soc, p. 519. 



Locality. — Punta Arenas, 3 cJ^, 17 9, igjun. 



Distribution. — Falkland Islands ; Tierra del Fuego ; Straits of Magellan ; 

 Chiloe ; Chili ; Valparaiso ; Gulf San Matias, Argentina. 0-45 fath. 



Remarks. — The specific name spinosulum was used by White in 1843, 

 spinulosum by the same author in 1 847 ; the latter form was accepted by 

 all subsequent writers except Miers (1886) and Stebbing (1900). 



The generic name Peltarion Jacquinot is correctly to be transcribed as 

 Peltariu)n, and this is preoccupied ; it has, therefore, to give way to 

 Hypopeltarium Miers. 



