in the Fish Gallery of the Indian Museum. 55 



Genus 5. Chaunax. In this genus the modified first 

 dorsal spine, or tentacle, is short. One species is known 

 and has been found at depths of 130 to about 400 

 fathoms, off the West Indies and neighbouring American 

 coasts ; off Madeira, Cape Verde and the neighbouring 

 African coasts ; in the Arabian Sea and Bay of Bengal ; 

 in Japanese Seas ; and off the Fiji Islands. Like 

 many other deep-sea animals, Chaunax p ictus is of a 

 beautiful red or pink colour. 



Genus 6. Halieutcea. In this genus the form of the 

 body is much like that of Lophius, but the modified 

 dorsal spine, or tentacle, is situated on the snout, where 

 it can be retracted into a bony cavity. Four species are 

 found in Indian waters, three of them at considerable 

 depths. 



Genus 7. Dibranchus. This genus is distinguished 

 from Halieutcca by having only two pairs of gills instead 

 of two and a half pairs. Two species occur in Indian 

 seas, both at depths of about 200 to about 400 fathoms. 

 Another species is found in the Atlantic. 



Genus 8. Malthopsis. This genus differs from Di- 

 branchus in little but dentition. In habit it resembles 

 Lophius and other forms. The type species occurs in 

 Indian seas at depths similar to those at which Di- 

 branchus is found. A second species has lately been 

 found off the Sandwich Islands. 



Genus 9. Halicmetus. This form differs from Malthopsis 

 only in having no soft dorsal fin. Only one species is 

 known, which shares the bathybial habitat of Malthopsis 

 and Dibranchus. 



Family XXV. Cottidce [Case 46]. 



A small family of Fishes, resembling the Trachinidce 

 in form and habit. Some of the bones of the head are 



