Apodal Fishes of Bengal. 201 



2. PTYOBRANCHUS GUTHRIANUS. PL x.fig. 2. 



This species is elongated like the last, but the tail is not so clumsy, 

 being a little more compressed, and terminating in an oval point. The 

 pectorals are very small, but the other fins are a little more prominent 

 than in the last species, and the rays in the narrow raphe connecting 

 the dorsal and anal with the caudal, may be counted with care. 



The fin rays are, P. 11 : D. 36 : A. 44 : C. 64 or, about 115 rays from 

 the commencement of the dorsal to the middle of the caudal, and 143 

 from commencement of the anal to the middle of the dorsal, including 

 the rays of the narrow raphe connecting those fins with thecaudal, as 

 nearly as I can ascertain. 



Colour dark brownish green, of a lighter shade below, but no white. 

 Hab. — Bengal. 



I have taken the opportunity of naming this species in 

 honor of Captain C. S. Guthrie of the Bengal Engineers, for 

 the service rendered by him to natural history, in the dis- 

 covery of Cervus frontalus, described vol. iii. p. 401 of this 

 Journal. 



3. PTYOBRANCHUS ERYTHREUS. PL ix. fig. 3. 



In this species the anal fin commences near the anus, and contains 50 

 or more distinct rays before it slopes into a narrow radiated raphe, which 

 connects it with the caudal. The dorsal contains about 40, and the caud- 

 al 70 or 80 distinct rays, which in the narrow prolongations connect- 

 ing these fins together, become so short as to render them difficult 

 to count, particularly in specimens that have been in spirits. I 

 have, however, counted about 134 from the commencement of the anal 

 to the middle of the caudal, and 125 from thence to the commencement of 

 the dorsal. 



The tail is compressed, and lanceolate at the point. The colour 

 above is red, minutely speckled with black dots, below reddish white. 



Hab. — Bengal. 



4. PTYOBRANCHUS MULTI DEN TATA. PL ix. fig. 4. 



Tail thick and broad at the point, the rays of the raphe not distin- 

 guishable. The fin rays are. 



D. 42 : A. 36 : C. 64. Colour red. 

 Hab. — Bengal. 



