1. UATKACnUS. 169 



c, d. Adiilt and half-grown. East Indies. 



e. Young. Presented by Captain Sir E. Belcher, C.B. 



Bloeh distinctly describes and figures his Coitus gmnniens with 

 four spines on the gill-covers ; therefore the species with three spines, 

 to which Valenciennes gives this denomination, cannot bo the same. 



3. Batrachus trispinosus. 



Seba, iii. 28. 4. * 



Batrachus grimniens, Cuv. 6r Val xii. p. 466 ; Cant. Catal. p. 205 ; 

 (not Bl). 



D. 3 I 22. A. 18. Y. 1/2. Yert. 12/17. 



The length of the head is contained three times and a half in the 

 total ; tlie width of the bony bridge between the orbits is five times 

 and a half in the length of the head, and equals the diameter of the 

 eye, -\\ hich is shorter than the snout. Gill-covers with thi'ce spines 

 directed backwards, two belonging to the opercvdum and one to the 

 suboperculum. Yomer and palatine bones with a single series of 

 short conical teeth. Snout broad, depressed, flat, surroimded by a 

 wreath of short tentacles ; tentacles above the orbit veiy distinct. 

 The maxillary extends to below the posterior margin of the orbit. 

 A round foramen in the upper part of the axil. Greenish- or 

 brownish-ohve, marbled with darker, the dark spots being dotted 

 and edged with black ; caudal, pectorals and ventrals with blackish 

 spots or narrow vertical bands. 



Seas of Bombay, Singapore, and Pinang. 



a. Adult : skin. Sea of Pinang. From Dr. Cantor's Collection. 

 h. Half- grown. Singapore. 



Air-bladder separated into two lateral divisions, imited by a narrow 

 transverse channel. 



4. Batrachus dussumieri. 

 Cuv. S,- Val. xii. p. 474. pi. 367. 



D. 3 I 20. A. 16. Y. 1/2. 



The length of the head is contained three times and a half in the 

 total. Gill-covers with three spines directed backwards, two be- 

 longing to the operculum and one to the subopercxilum. The lower 

 jaw and the palate with narrow bands of villiform teeth. Snout 

 broad, depressed, flat, surroimded by a wreath of very short tentacles ; 

 tentacle above the orbit very small. Brown, with three rather in- 

 distmct darker cross-bands ; fins immaculate. (^Val.) 



Coast of Malabar. 



Air-bladder similar to that in B. trispinosus. 



5. Batrachus dubius. 



White, Voy. Neto South Wales, p. 265 ; Micliards. Voij. Ereb. i),- Ten: 

 Fishes, p. 16. pi. 10. 



D. 3 1 18. A. 15. Y. 1/2. 



The length of the head is contained three times and a half in the 



