1304 Catalogue of Malayan Fishes. [Dec. 



single-lobed liver which extends to cardia and pylorus ; it is of a 



brownish lake colour ; the small gall-bladder is almost entirely imbedded 



in the substance of the liver. Both cardia and pylorus are situated at 



the end of the second eleventh of the total length. The cylindrical 



elongated stomach extends to within a short distance from the anus ; the 



anterior third portion is thick, muscular, with internal longitudinal 



folds ; the rest of the sac is membranous, without folds, and widened 



at the transition. The duodenum is wider than the rest of the canal, 



the length of which is i of the total. The pale crimson spleen is 



short, linear, adhering to the duodenum. The silvery-white air-vessel is 



linear, spindle-shaped ; it commences a little in front of the posterior 



half of the distance between the muzzle and anus, at the origin of the 



membranous portion of the stomach and extends but a little into the 



cavity of the tail. The latter terminates as far behind the anus as the 



anterior half of the total length. The cavity contains the bluish grey 



kidneys, which extend but a little in front of the anus, and the ovaries, 



which farther occupy nearly the whole length of the abdominal cavity, 



and extend to halfway between the pylorus and the heart. The ova 



are very minute of a whitish yellow colour. 



Ophiurus boro, Buchanan Hamilton. 

 Plate V. Eig. 2, (Nat. size.) 



Ophisurus boro, Buchan. 20, 363. 



(Icon.) Ophisurus boro, Gray: 111. Ind. Zool. I. PI. 95, Fig. 1. 



Ophisurus boro, McClelland : Calc. Journ. Nat. Hist. V. 185, 211. 



Ophisurus boro, Richardson, Report, 1845, 313. 



Ground-colour whitish yellow ; upper half of head and body, so 

 closely dotted with black, as to produce a general blackish appearance ; 

 dorsal pale olive white, dotted and edged with black ; anal white ; pec- 

 torals pale yellowish olive dotted with black ; abdomen white. Iris 

 pale golden, dotted with black. 



D 315 to 328, A* 205 to 244, P 13, Br. XXXI. 



Habit. — Sea ofPinang. 



Estuaries of the Ganges. 



Total length : 2 feet 2f inch. 



* These are the greatest variations in individuals examined at Pinang and in 

 Calcutta. Buchanan counts : " A 270 ?" 



