C. monstrosa, Linn. Syst. Nat. torn. 1. p. 401. Bloch, Ichth. pl. 124. Turt. Brit. Faun. p. 114. Don. Brit. Fish. vol. v. pl. 111. Flem. Brit. An. p. 172. Galeus Acantbias Clusii, Will. Hist. Pise. p. 57. tab. B. 9. f. 6. Northern ChimaBra, Penn. Brit. Zool. (Edit. 1812). vol. iii. p. 159*. La Chimere arctique, Cuv. Reg. An. torn. 11. p. 382.


From two to three feet. Cuv.


(Form). " Body compressed: head blunt; the snout sub-ascending, blunt: a narrow crenulated grinder on each side in the lower jaw, and a broad tubercular one corresponding above: nostrils immediately above the upper lip, contiguous, each with a cartilaginous complicated valve: branchial openings in front of the pectorals: eyes large, lateral: lateral line connected with numerous waved anastomosing grooves on the cheeks and face: on the crown, in front of the eyes, a thin osseous plate, bent forwards, with a spinous disk at the extremity on the lower side: the first dorsal fin above the pectorals, narrow, with a strong spine along the anteal edge: second dorsal arising immediately behind the first, narrow, and continued to the caudal, where it terminates suddenly: pectorals large, subtriangular: ventrals rounded; in front of each a broad recurved osseous plate, with recurved spines on the ventral edge: claspers pedunculated, divided into three linear segments, the anteal one simple, the retral ones having the opposite edges covered with numerous small reflected spines: a small anal fin opposite the extremity of the second dorsal: caudal fin above and below, broadest near the origin, gradually • decreasing to a linear produced thread." Flem. (Colours). "The whole body dark brown above, varied with yellowish brown and silvery; the lower parts of a bright silver colour: eyes green, with silvery irides, and very brilliant, or shining with phosphoric splendour." Don.

Found principally in the northern seas of Europe, and but rarely met with in those of Great Britain. The above description was taken by Dr. Fleming from a specimen captured in the Zetland seas, where it is said to be known by the name of Rabbit-Fish. Food, according to Bloch, medusae and crabs.