3G. RITA. 93 



dorsal spine well developed, and as long as the occipital process. 

 Maxillary barbels shorter than the head. The teeth on the palate 

 form two subelliptic patches which are confluent anteriorly. Hu- 

 meral process very large, nearly as long as the head, rounded behind. 

 Dorsal and pectoral spines excecchngly strong, the former as long as 

 the head. Adipose fin as long as the dorsal. 

 Bengal. 



a-d. Adult and half-grown : stuffed. Ganges. 

 e. Adult : stuffed. From Mr. Grifiith's Collection. 

 /. Adult: skin. India. 



2. Rita pavimentata. 



Arius pavimentatus, Valenc. in Jacq. Voij. Ind^s, Atl. Poiss. pi. 17. lig.2 ; 



Cm. 8f Vtil XV. p. 94. 

 ? Arius ritoides, Citv. Sf Val. xv. p. 92. 



D. 1/6. A. 12. P. 1/10. 



The upper surface of the head is covered with skin ; maxillary 

 barbels shorter than the head. The teeth on the palate granular in 

 front, enlarged and molar-like behind, in two subelliptic patches 

 which are confluent anteriorly. The humeral process is three-fifths 

 as long as the head, sharply pointed behind. Dorsal spine mode- 

 rately strong, its length being two-thirds or three-quarters of that 

 of the head. Adipose fin as long as the dorsal. 



Bengal. 



a. Nine inches long. East Indies. Presented by Dr. A. Giinther. 

 h. Nine inches long : stuffed. East Indies. From the Collection of 



the Zoological Society. 

 c-d. Adult and young. Toombuclra River. Presented by Capt. J. 



Mitchell of Madi-as. 



3. Rita hastata. 



Arius hastatus, Valenc. in Jacq. Voy. Incles, Atl. Poiss. pi. 18. fig. 2 ; 



Cuv. ^- Val. XV. p. 97. 

 pumilus, Valenc. I. c. fig. 1. 



D. 1/6. A. 12. 



Teeth on the palate in two separate patches. Head smooth above. 

 Dorsal spine moderately strong, higher than the body underneath. 

 (Val.) 



Hindostan. 



4. Rita kuturnee. 



Plivactocephalus kuturnee, Sijkes, in Trans. Zool. Soc. ii. p. .372. tab. 0.5. 

 fig. 3. 



D. 1/6. A. 12. 



Maxillary barbels rather longer than the head. Humeral proce.'^s 

 two-thirds as long as the head, narrow and rounded behind. Dorsal 

 and pectoral spines moderately strong, strongly serrated, terminating 

 in long soft filament^. Adipose fin shorter than the dorsal. (<S(//w.) 



Beema River (Dukhun). Six inches long. 



