360 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



PAMA, new genus » 



Type. — Bola imma Buchanan-Hamilton. 



Elongately ovoid, narrowing to slender caudal peduncle. Snout 

 short. Eye small, advanced. Mouth oblique, lower jaw little 

 shorter. Teeth in villiform bands in jaws, outer upper and lower 

 inner rows little enlarged. Preopercle crenulated, with distinct den- 

 ticles at angle in young. Scales small, cycloid on head, ctenoid on 

 body. Lateral line with enlarged scales. Spinous dorsal with 10 

 spines, fin small and soft fin mth long base, rays 40 to 43. Anal with 

 2 spines and 7 rays. Caudal cuneate. Pectoral long as head, ventral 

 inuch shorter. 



Diagnosis. — Known by its very long dorsal fin, base of which nearly 

 half body length without caudal, also hj its long pectoral equal to 

 the head. 



Two species, large fishes of the shores of the Bay of Bengal and 

 Gulf of Siam, sometimes found in tidal estuaries and rivers. 



ANALYSIS OF SPECIES 



a}. All fin spines slender; anal rays 7 pama. 



a?. Last dorsal, second anal, and ventral spines all greatly enlarged, conspicu- 

 ously robust; anal rays 8 or 9 perarmata. 



PAMA PAMA (Buchanan-Hamilton) 



Bola pama Buchanan-Hamilton, Fishes of Ganges, pp. 79, 368, pi. 32, fig. 26, 



1822 (type locality: Ganges tidal estuaries, Calcutta). 

 Sciaena pama Cuvier, Hist. Nat. Poiss., vol. 5, p. 55, pi. 101, 1830 (Bengal and 



Irawaddi River). — Jordan and Eigenmann, Rep. U. S. Fish Comm., pt. 14, 



p. 347, 1886 (1889) (name). — Steindachner, Ann. Hofmus. Wien, vol. 11, 



p. 227, 1896 (Irawaddi mouth at Rangoon). — Lloyd, Rec. Indian Mus., 



vol. 1, p. 226, 1907 (Akyab). 

 Collichthys pama Gunther, Cat. Fish. Brit. Mus., vol. 2, p. 316, 1860 (Calcutta, 



Bengal Bay, India, East Indies). — Duncker, Mitt. Naturh. Mus. Hamburg, 



vol. 21, p. 155, 1903 (1904) (Kuala Selangor).— Fowler, Proc. Acad. Nat. 



Sci. Philadelphia, 1929 (1930), p. 650 (East Indies); 1931, p. 446 (Bagan 



Datah, west coast Malaya). 

 Otolithus pama Mason, Burmah Nat. Resources, p. 695, 1860. 

 Sciaenoides pama Blyth, Proc. Asiat. Soc. Bengal, vol. 29, p. 139, 1860 (Sitang 



River).— Day, Fishes of India, pt. 2, p. 193, 1876 (Calcutta); Fauna Brit. 



India, vol. 2, 1889, p. 124. — Hardenberg, Treubia, vol. 13, livr. 1, p. 133, 



1931 (Rokan mouth, Sumatra). 

 Sciaenoides hardwickii Blyth, Proc. Asiat. Soc. Bengal, vol. 29, p. 139, 1860 (type 



locality: Sitang River). 



Depth 3%; head 3%, width 1%. Snout 3% in head; eye 8%, 2 in 

 snout, 2% in interorbital ; maxillary reaches at least eye diameter 

 beyond eye, expansion (concealed) IK in snout, length 2 in head; 

 teeth in vilhform bands, with outer row of moderately large well 

 spaced canines all around each jaw; interorbital 3, broadly and well 



* From pama, the specific name of the genotype according to Buchanan-Hamiltonj 



