CARCnARIIDJE. 23 



23. (3.) Zygaena tildes. 



Zyprrena tudes, Val. Mem. Mus. ix, p. 22o, pi. ii, f. 1 ; Day, Fish. 

 India, p. 720, pi. clxxxviii, fig. 4 (see synon.). 



Koma sorrah, Tel. 



Anterior edge of head curved, but the front margin is not con- 

 tinuous with the lateral ; the length of the hind margin less than 

 the width near the eye. Eyes situated just below the junction 

 of the anterior and outer edges of the snout. Nostril close to the 

 eye. A groove running along the anterior edge of the head. 

 Teeth oblique, with a notched outer edge. Fins dorsal arises 

 above the hind margin of the inner edge of the pectoral fin, its 

 height equals the length of the pectoral ; second dorsal over the 

 hind half of the anal ; length of the base of the anal extends | of 

 the distance to the ventral ; caudal 3 to 3j in the total length. 

 Colour grey, becoming lighter beneath ; first dorsal fin very dark, 

 the upper portion of the second dorsal and the lower caudal lobe 

 deep black in newly captured examples, the colour fading after 

 they have been some time in spirit. One example, captured at 

 Cochin, Dec. 27, 1872, besides the black marks on the fins men- 

 tioned, had the hind edge of the dorsal and the end of the pectorals 

 dark. 



Hob. Mediterranean, Indian Ocean and Archipelago, also 

 tropical parts of the Atlantic. It attains several feet in length. 



24. (4.) Zygaena mokarran. 



Zj'gnena mokarran, Riippcll, N. W. Fische, p. G6, t. xvii, f. 3 ; Day, 

 Fish. India, Supplement, p. 8C9 (see synon.). 



Anterior edge of head nearly straight, forming a more or less right 

 angle with the lateral margin. Length of hind edge of one of 

 the lobes equal to its width near the eye ; no groove running along 

 the anterior edge of the head. Eyes near nostrils. Teeth 

 oblique, as broad at their base as long, with an indistinct lateral 

 notch, and serrated on both . edges. Colour brownish-grey, 

 becoming white beneath. 



Hab. lied Sea to Kurrachee. 



Third group. MUSTELINA. 



5. Genus MUSTELTJS, Cuvier. 



Nictitating membrane present. Small spiracles behind the eyes. 

 Mouth crescentic, with long labial folds. Teeth small, numerous, 

 similar in both jaws, and pavement-like, obtuse, or with indistinct 

 cusps. The first dorsal fin spineless, situated above the interspace 

 between the pectoral and ventral ; the second nearly as large as 



