FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 503 



Color in formalin light brown above, paler below. Back with 

 broad and longitudinal dark streak along base of dorsals to caudal, 

 2 shorter and more obscure streaks, 1 above lateral line and 1 below, 

 on anterior part of body. Lateral line dusky. Top of head darker, 

 ligliter band across snout in front of eye. Fins blackish toward tips. 



Length, 750 mm. (Fang and Wang.) 



China. Differs from Chimaera monstrosa and allied species chiefly 

 in the confluent anal and subcaudal fins. 



Order Callorhinchoidei 



Snout produced, more or less as proboscis. Claspers simple. 

 Family RHINOCHIMAERIDAE 



Body elongate, tapering into very long tail, tip filamentous. Head 

 with long rostral proboscis, pointed, with cartilaginous midrib and 

 foliaceous lateral skin expansions at base. Gill openings separated 

 by wide isthmus. Notochord with rings. Cerebral hemispheres dis- 

 tant from both olfactory and optic lobes. Lateral canal system 

 subtubular. Dorsals 2, first with great, erectile, triangular spine, 

 lateral edges serrate, close to head; second dorsal low. Anal not 

 distinct from subcaudal. Caudal tapers backward to filament. Sub- 

 caudal well developed, without produced lobe. Pectorals large, free. 

 ]\Iales with small, simple claspers, slender, end in volute knob with 

 hooked spines. Males with frontal holder or tenaculum and pre- 

 pelvic tenacula. 



Bathypelagic. 



ANALYSIS OF GENERA 



o\ Snout compressed; upper caudal edge spinose Bhinochimaera 



a". Snout depressed; upper caudal edge not spinose Harriotta 



Genus RHINOCHIMAERA Garman 



Rhinochimaera Gaeman, Proc. New England Zool. Club, vol. 2, p. 76, 1901. (Type, 

 Harriotta pacifica Mitsukuri.) 



Snout depressed, elongated into slender point, profile of forehead 

 nearly straight. Teeth without tritors or dental plates, much like 

 horny covers of jaws of tortoises or birds. Supracaudal low, upper 

 edge armed with spines. Male with peduncle of frontal tenaculum 

 short and straight, owing to straight upper profile of head. 



RHINOCHIMAERA PACIFICA (Mitsukuri) 



Harriotta pacifica Mitsukuri, Zool. Mag., Tokyo, toI. 7, p. 97, pi. 16, 1895 

 (type locality: Kurihama, near Misaki, Sagami Sea). — Jordan and Snyder, 

 Annot. Zool. Japon., vol. 3, p. 43, 1901 (Sagami Bay?).— De^^n, Jour. Coll. 

 Sci. Tokyo, vol. 19, art. 4, pis. 1-2, 1904. 

 156861—41 33 



