On new Crustacea from Christmas Island. 181 



37. Pelomys fallax, Peters. 

 ? . 167, 168, 170. Kalungwisi River. 



38. Georychus mellandi, TIios. 

 <J. 119. Chambezi Valley. 



39. Georychus amatus, Wrought. 



(J. 114,116; ?. 115, 117. Chambezi Valley. 



S . 134. Edge of Chimpili Plateau. 



cT . 148, 149. Lofu River, south of Lake Tanganyika. 



XXVI. — On Two new Species of Wood-boring Crustacea from 

 Christmas Island. By W. T. Calman, D.Sc. 



(Published by permission of the Trustees of the British Museum.) 



[Plate V.] 



AMONG the Crustacea collected by Dr. C. W. Andrews, 

 F.R.S., on his visit to Christmas Island in 1908, and pre- 

 sented to the British Museum by Sir John Murray, K.C.B., 

 F.R.S., are two species, an Amphipod and an Isopod, which 

 were found boring into the piles of the pier at Flying-Fish 

 Cove. It is worthy of note that, although both species are 

 apparently undescribed, they belong to the same genera, 

 Chelura and Limnoria, as the two species that are associated 

 together in destroying submarine timber on our own coasts. 



The aberrant Amphipod family Cheluridse has hitherto 

 comprised only a single species, the well-known Chelura 

 terebrans of the North Atlantic and adjoining seas, and the 

 discovery of a second species in the Indian Ocean is there- 

 fore of some interest. 



Of the Isopod genus Limnoria five species have already 

 been described. L. pfefferi, Stebbing, the only one known 

 in tropical seas, comes from the island of Minikoi, but it 

 appears to be very distinct from the species described below. 



Order AMPHIPODA. 



Suborder G A M M A R I D E A. 



Family Cheluridse. 



All necessary references to the literature of the family and 

 of its type species will be found in Mr. Stebbing's invaluable 

 Ann. <fc Mag. N. Hist. Ser. 8. Vol. v. 13 



