36. 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 exceedingly 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. Griffith's Collection. 

 /. Adult: skin. India. 



2. Rita pavimentata. 



Arius pavimentatus, Valeric, in Jacq. Voy. hides, Ail. Poiss. pi. 17. fig.2 ; 



Cuv. fy Val. xv. p. 94. 

 ? Arius ritoides, Cuv. §• 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 tbree-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 tbe dorsal. 



Bengal. 



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



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



the Zoological Society. 

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

 Mitchell of Madras. 



3. Rita hastata. 



Arius hastatus, Valenc. in Jacq. Voy. Indes, Ail. Poiss. pi. 18. fig. 2 ; 



Cuv. 8f 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. 



Phractocephalus kuturnee, Sykes, in Trans. Zool. Soc. ii. p. 372. tab. 65. 

 fig. 3. 



D. 1/6. A. 12. 



Maxillary barbels rather longer than the head. Humeral process 

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

 and pectoral spines moderately strong, strongly serrated, terminating 

 in long soft filaments. Adipose fin shorter than the dorsal. (Sykes.) 



Beema River (Dukhun). Six inches long. 



