] 40 SILURIDJi. 



Bagrus netuma, Cuv. fy Val. xiv. p. 438. pi. 417. 



? Bagrus lsevigatus, Cuv. §■ Val. xiv. p. 439. 



Ariu3 nasutus, Cuv. §• Val. xv. p. 60 ; Bleek. Verh. Bat. Gen. xxi. 



Sjlur. Batav. p. 31. 

 Bagrus rhodonotus, Bleek. I. c. p. 29. 



carchariorhynchus, Bleek. I. c. p. 30. 



Netuma nasuta, Bleek. Prodi: Silur. p. 95, and All. Ichth. Silur. tab. 61. 

 thalassina, Bleek. Atl. Ichth. Silur. p. 28. 



D. 1/7. A. 16-17. P. 1/11. Vert. 18/27. 



The height of the body is contained from four times and three- 

 quarters to five times and two-fifths in the total length (without 

 caudal), the length of the head four times and a. quarter or thrice 

 and a half. Head much broader than high ; snout obtuse in young 

 specimens ; the adult fish with the upper jaw pointed 

 and projecting much beyond the lower. The teeth 

 on the palate are villiform, and form a pair of more 

 or less separate subtriangular patches, each of which 

 is composed of three portions. The maxillary barbels 

 extend to the opcrcles or to the pectoral. Crown 

 of the head granulated ; occipital process triangular, rather longer 

 than broad, elevated in its middle into a longitudinal v '■■—''> 

 ridge ; the basal bone of the dorsal spine is small, 

 crescent-shaped. Dorsal spine of moderate strength^ 

 granulated in front, slightly serrated behind ; its length 

 equals that of the head without snout. The soft dorsal 

 fin is as high as the body. Adipose fin very short. Pec- 

 toral spine stronger and but little shorter than that of 

 the dorsal fin. 



Red Sea ; East Indies. 



a. Thirty-two inches long: stuffed. East Indies. From the Col- 



lection of the East India Company. 



b. Half-grown. Singapore. Front the Haslar Collection. 



c. Young. Red Sea. Presented by Dr. E. Riippell. 



d. e. Half-grown. Java. 



/. Half-grown. From Dr. P. v. Bleeker's Collection 

 g. Adult (20 inches long) : stuffed 



2. Arius gagorides. 



Bagrus gagorides, Cuv. fr Val. xiv. p. 441 ; hiyth, Jouia. As. Soc. Beng. 



xxvii. p. 285. 

 trachipomus, Cuv. ty Val. xiv. p. 443. 



D. 1/7. A. 17. P. 1/12. 

 The height of the body is rather less than one-fourtn of the total 

 length (without caudal), the length of the head two-sevenths; head 

 much broader than high, its greatest width being equal to the dis- 

 tance of the hinder nostril from the end of the opercle. The teeth 

 on the palate are in two pairs of confluent patches, those of the 

 vomer being very small, whilst those on the palatine bones are 

 large, broad, and emarginate posteriorly. Six barbels, shorter than 



