﻿28 Aiinah of tJte Soidh Aj'ricttii Mii.^eutn. 



Dr. Je Mau now assigns to tliis family tbe genera Puhjcheles, 

 Heller, 18G2, WiLlemoes^ia, Grote, 1873, Jvnjonfirvs, Bate, 1882, 

 Stereomnfifin, Bate, 1888, and gives lists of all the species to 

 he apportioned to these genera respectively. He considers that 

 Alcock was right in distinguishing the two groups wliich he 

 named Polijcheles and Pentacheles, but that his Poli/cheles 

 should properly be identified with Bate's Stereomastis and (hat 

 Pentacheletf, Bate, 1878, should lapse as a synonym of Heller's 

 Polijcheles. 



Gen. POLYCHELES, Heller. 



1862. Pohjcheles, Heller, Sitz. K. Akad. Wiss. Wien, vol. 45, p. 389. 

 1912. ,, (part). Kemp and Sewell, Recoi'ds Indian Mus.. 



vol. 7, pt. 1, no. 2, p. 23. 

 1914. „ ,, Selbie, Fisheries, Ireland, Sci. Invest., pt, 1, 



p. 9. 

 1910. „ de Man, Siboga Exp., vol. 39a-, p. 1. 



As characters for the genus Dr. de Mau proposes the follow- 

 ing : The thoracic legs, except the last pair, pi'ovided with 

 epipods, normal but varying in length ; the epipod of the third 

 maxillipeds also of variable size, but, so far as known, rudi- 

 mentary only in P. tanneri, Faxon ; the latei'al borders of the 

 carapace commonly armed with more than twenty spines, except 

 in the small and probably juvenile form, P. ohscnrns (Bate) ; 

 the median dorsal carina of the carapace usually doulile, granu- 

 lated, rarely nodulated, and in most cases presenting no definite 

 small number of spines, being often traversed by bead-like 

 tubercles or granulations or covered with crowded spinules ; 

 the first abdominal tergum, finally, is probably never armed 

 with the two small spines at and near the outer ends of the 

 anterior border, that generally occur in the species of Stereo- 

 mastis. 



POLYCHBLKS DEMANI, U. Sp. 



Plate XCII. 



1908. Pohjcheles heanmontii (?), Stebbing, Ann. S. Afr. Mus.. vol. 6, 



pt. 1. p. 25. 

 1910. .. „ (V). Stebbing, Ann. S. Afr. Mus., vol. 6, 



pt. 4, p. 377. 

 In naming this species after my friend Dr. de Man I now 

 accept the opinion expressed in his latest very valuable work, 



