THE DISCOBOLI. 41 



Cyclopterichthys ventricosus. 



Ctjclopterus ventricosus Pallas, 1769, Spicil. Zool., fasc. 7, p. 16, pi. 2, fig. 1-3, — 1831, Zoogr. 

 Ross.-Asiat., III. 74; Bounat., 1788, Ichthyol., p. 28, pi. 20, fig. 66; Gmel., 1789, Syst. Liun., I. 1476; 

 Walb., 1792, Art. Gen. Pise, 487; Donud., 179S, Beiti-., III. 816; Georgi, 1801, Geogr.-Phys. Xat. 

 Beschi-. Russ. Reichs, VII. (3d pt.) 1967; Sonn., 1803, Hist. Poiss., V. 263 ; Shaw, 1804, Gen. Zool., 

 V. 394; Turt, 1806, Syst. Nat. Linn., I. 905; Cuv., 1817, R. An., II. 227, — 1829, R. An., II. 846, — 

 1836, R. An., I. 573; Rich., 1836, F. B. Amer., III. 263 ; Val., 1840, Cuv., R. An., ed ill., Poiss. 501. 



Lepadogaster ventricosus Bl. Schn., 1801, Systema, p. 3. 



Lumpus ventricosus Stor , 1846, Synops. N. Amer. Fishes, 482. 



Cutijlis ventricosus Gthr., 1861, Cat., III. 498. 



Cyclopterichthys glaber St., 1881, Ichth. Beitr., X. 14, pi. 8. 



Cyclopterichthys ventricosus J. & G., 1882, Bull. 16 U. S. Mus., 745. 



D. 10 ; A. 8-9 ; p. 20 ; C. 10. (Pall., C. ventricosus.) 



D. 9; A. 7; P. 20; C. 11. (St., C. glaber.) 



Body stout, thick, short, smooth, abruptly compressed behind the body 

 cavity. Caudal portion nearly two fifths of the total length. Head about 

 one third of the length without the caudal, broad, depressed but convex 

 on the crown, blunt and broadly rounded on the snout. Mouth wide, 

 anterior, opening slightly upward, corner under the middle of the eye. 

 Teeth small, hooked, simple, in two series in front, and but one toward 

 the sides. Pallas says of the dentition : " Maxillarum margines ossei, denti- 

 culis minutis, curvulis, obtusiusculis, inordinatis et intequalibus, passim gemi- 

 natis asperi ; quorum in superiore maxilla interiores majores." Eye lateral, 

 its diameter contained about seven times in the length of the head. Dorsal 

 short, behind the abdominal chamber, its upper extremity extending behind 

 a vertical from the base of the caudal, margin rounded. Anal smaller than 

 the dorsal and opposed to it, though originating a trifle farther b.ack. 

 Caudal subtruncate, rounded. Vent almost directly in the middle of the 

 total length. Disk subcircular, with a broad cutaneous margin. 



Browni.sh, with numerous scattered, small, rounded spots of darker. 



The following is the account of the anatomy given by Pallas : — 



" Pleura intus aterriraa. Acetabulo subjacent rausculi quatuor robustisslmi, contrac- 

 tioni et dilatationi ejusdem servientes. 



'■'■ Menes statim ad caput oriuntur e duobus lobis posterius ad spinam in unum coaliti, et 

 spinas longitudinaliter incumbentes. Vreteres e posteriore parte duo, quorum quilibet ad 

 peculiarem vesicam rendit. 



" Vesica tcrinaria gemina, in quovis alvi latere una, sine exemplo amplissima ; utraque 

 postice producta coalescit in Uloacam communem seu collum ano insertum, arctissime clause ; 

 qui presso abdomine urinam cum impetu emingit. 



" Reliqua fere ut in Cottis quibusdam." 



Hub. — Kamtchatka ; Sea of Ochotsk. 



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