CKUSTACEA. 197 



West Australia (Rayner, H.M.S. ' Herald '), and from Raffles Bay 

 (Mu8. Paris). 



Its occurrence at Port Essington is mentioned by Mr. Haswell. 



16. Schizophrys aspera (M.-Edw.). 



A nearly adult female is iu the collection from Thursday Island, 

 3-4 fms. (No. 175). 



Professor Alphonse Milne-Edwards * has united, I believe rightly, 

 under the designation S. aspera several so-called " species " de- 

 scribed by various authors, and I may refer to his memoir for infor- 

 mation on the geographical distribution of this very variable species. 

 Nevertheless, it may be found useful to distinguish two or three 

 varieties under the different specific names formerly adopted, charac- 

 terized by the armature of the carapace, rostrum, and chelipedes. 



The specimen from Thursday Island is referred to the typical 

 S. aspera, M.-Edwards (although in it the tooth on the middle of 

 the lower orbital margin is obsolete). To the typical form (with 

 which S. serratus, White, and S. spiniger, White, may be considered 

 identical) are also referred specimens in the Museum collection from 

 the lied Sea (?), Mauritius {Lady F. Cole), Madagascar (Rev. Deans 

 Cowan), Ceylon (Dr. W. Ondaatje), and Philippine Islands (Cuming), 

 and perhaps a very fine adult male from Japan (purchased). 



To the variety spinifrons, A. M.-Edwards, characterized by pos- 

 sessing an accessory spinule on each rostral spine, belong specimens 

 from Torres Straits (J. B. Jukes), Lizard Island (J. B. Jakes), and 

 Fiji Islands, Ngau, Ovalau (H.M.S. ' Herald '). 



I may add that there are in the British-Museum collection speci- 

 mens of the very distinct species $. dama (Herbst) from Shark 

 Bay and King George's Sound, West Australia (H.M.S. 'Herald'). 

 This species is not mentioned in Mr. Haswell's recently published 

 Catalogue. 



Kossmann has recently t proposed a very different classification 

 of the species of this genus, which he regards as a subgenus of 

 Mithrax. He proposes (unnecessarily, as I believe) a new specific 

 designation, M. triangularis, for the typical species generally desig- 

 nated S. aspera (M.-Edwards). 



17. Pseudomicippa ? varians. 



Pseudoniicippe ? varians, Miers, Ann. 8f Mag. Nat. Hist. ser. 5, iv. 

 p. 12, pi. iv. fig. 8 (1879). 



In Dr. Coppinger's first collection a female with ova, from Port 

 Denison, 4 fms. (No. Ill), is referable to this species ; in the second 

 collection is an adult male and female from Thursday Island, 3-5 



* Nouv. Archiv. Mus. Hist. Naturelle, viii. p. 231, pi. x. fig. 1 (1872). 

 t 'Zool. Ergeb. einer Eeise im Kustengeb. des rothen Meeres,' (i.) p. 11 

 (1877). 



