25G THE FISHES OF MALABAE. 



it arrives opposite the centre of the posterior margin of the orbit, it gives off a branch to join the 

 opposite portion, it then describes a gentle curve towards the end of the dorsal and anal fins from 

 whence it proceeds direct to the centre of the caudal : a second lateral line goes from the centre 

 of the mouth along the abdominal surface to beyond the anal fin, it runs parallel with the 



superior one. 



Colours — Upper surface of head and back greenish olive ; sides and abdomen of a satin-white, 

 having a line of gold colour passing from the orbit to the centre of the caudal. Fins yellow : 

 posterior margin of caudal black. Iris golden, dark towards the orbit. 



Grows to a foot in length. 



Habitat— Seas and estuaries of Red Sea, India, Malaysia and Japan. 



Genus CRAYRACION, Klein. 



Cieeiiostomus, Swain. 



Aeotiieon, Mull. 



Epipedorhynchus, dichotomycterus, et dilobomycterus, Bib. 



Brachycephalus et apsicephalus, pt. Holl. 



Differs from the Genus Tetraodon, by the nostrils on each side being provided with a broad, single, or 

 double, imperforate tentacle, in some bifid only at its extremity. Body entirely or only superiorly and 

 inferiorly spined. Dorsal and anal fin short. 



Crayeacion fluviatilis. 



Teteodon fluviatilis, Ham. Buck. pp. 6, 361, pi. 30, f. 1. 



? Teteaodon simulans, Cantor, Catal. p. 374. 



Ceayeacion fluviatilis, Bleeker, Atl. Ich. v. p. t. 205, f. 4. 



B. v. D. 12-14. P. 21. A. 10-12. C. 8-12. 



Length of head \, of pectoral \, of caudal \, of base of dorsal fa, of base of anal ^ of total 

 length. Height of head \, of body uninflated \, of dorsal \, of anal \ of total length. 



Ey es — Protrude considerably : diameter nearly \ of length of head, 1£ diameters from end 

 of snout, 3 diameters apart anteriorly, but nearly 4 posteriorly. 



Abdominal profile, when the fish is not inflated, is scarcely more convex than that of the back. 

 The width of the head at its widest part equals two-thirds of the height of the uninflated body, 

 but the thickness decreases as the tail is approached. 



Upper jaw slightly the longest, lips fleshy : two tentacles arise one from the base of each 

 nostril, which are situated rather in front of the orbits. The anterior is single, the posterior double. 



Teeth — Generic. 



Fins — Pectoral with a broad rounded base : dorsal arises over the anal in the posterior fourth 

 of the body, its first three rays are unbranched : anal has its first two rays unbranched : caudal rays 

 coarse, and mostly crooked. 



Spines extend from below the posterior third of the orbit round the chest, and superiorly as 

 far as to above the posterior third of the orbit, whilst they are continued along the back to nearly 



