114 SILTJEULE. 



EUTROPIUS, Mull. & Trosch. 



384. Eutropius, sp. incerta. 498. J 



River Rovuma : immature specimens. 



BAGRUS, Cuv. & Val. 



385. Bagrus bayad. 4 "] 



Silurus bajad, Forsk. p. 66. 



Bayatte, Sonnini, pi. 27 (bad). 



Porcus bayad, Geoffr. Desc. Eg. Poiss. pi. 15. f. 1. 



Bagrus bayad, Cuv. fy Val. xiv. p. 397; Giinth. Fish. v. p. 69. 



Pangani river. East coast of Africa. Nile. Senegal. 



ARIUS, Cuv. & Val. 



386. Arms thalassinus. [120,151,407.] 

 Deddi jella, Russell, pi. 169. 



Bagrus tbalassiuus, Riipp. N. TV. Fische, p. 75, t. 20. f. 2. 



bilineatus, Cuv. i$ Val. xiv. p. 434. 



netuma, Cuv. ^ Val. xiv. p. 438, pi. 417. 



Arius nasutus, Cuv. fy Val. xv. p. 60. 

 Netuma nasuta, Bleek. All. Ichth. ii. t. 61. 



tbalassina, Bleek. Ail. Ichth. ii. p. 28. 



Arius tbalassiuus, Giinth. Fish. v. p. 139. 



Aden. Zanzibar. Red Sea. East Indies and East-Indian archipelago. 



387. Arius falcarius. [501.] 



Arius falcarius, Richards. Voy. Sufph. Fish. p. 134, pi. 62. figs. 7-9; Giinth. Fish. v. p. 168. 

 scblegebi, Bleek. Nederl. Tydschr. Dierk. 1863, p. 146. 



Varietas africana. — The African variety of A. falcarius differs from the Asiatic one in 

 the following points only. The maxillary barbels extend to the end of the humeral 

 process, the triangular patches of palatine teeth are somewhat larger, the bones of the head 

 a little more coarsely granulated, and the dorsal spine less distinctly serrated behind, 

 which differences cannot justify the creation of a distinct species. 



It is not a little remarkable that this species, hitherto only known as existing in the 

 Chinese seas, should be found far up in an East-African river, and never, as far as we 

 are aware, in the salt water of that region ; but it is very probable that it will be 

 discovered eventually in some of the intermediate regions. 



Pangani river. Chinese seas. 



