320 Miscellaneous. 



of the latter bird without naming it in my list of his collection (see 

 P. Z. S. 1856, p. 303), but was mistaken (as I now see) in consider- 

 ing it a female. 



This Euphonia is the fourth additional Tanager I have met with 

 since completing the synopsis of these birds given in the Proceedings 

 for last year; the others being Calliste rufigena (P. Z. S. 1856, 

 p. 311), Saltator melanopterus (Pr. Ac. Sc. Phil. viii. p. 361), and 

 Pyranga roseigularis (P. Z. S. 1857, p. 6). The latter bird was 

 long ago described by Dr. Cabot, but at the time of completing my 

 synopsis I had not seen specimens of it. — Proc. Zool. Soc. April 28, 

 1857. 



Description of a new genus of Star-Jish. By P. C. Asbjornsen. 

 Genus Brisinga. 



Discus aculeatus. Tessella madreporiformis marginalis. In bra- 

 chiorum lateribus dorsalibus duse pororum genitalium series ; tenta- 

 culorum duse series ; os ab angulis brachiorum distans ; brachia 

 cylindracea, induta cute cum multis costellis transversalibus, calcariis, 

 tenuibus. A brachiorum sulcis utrinque tres series papillarum acu- 

 formium, sicut aculeoli disco ceterisque partibus insideutes, et ipsse 

 echinulatcc, et insuper inclusse vagina cutanea ; innumeris pedicellariis 

 tecta. 



Brisinga endecacnemos, n. sp. — This is the only species. It was 

 dredo-ed at Hardangerfjord, at the end of August 1853, at a depth 

 of 100-200 fathoms, where it was placed on the lateral and perpen- 

 dicular plane of a mountain, which seemed to descend from 80 or 

 90 to 200 fathoms or more. It occurs rarely, and is very brittle, it 

 beino- impossible to obtain perfect specimens, from the faciUty with 

 which they throw off their arms. When seen under water in the 

 dredge, the author describes it as a true " gloria maris." The smallest 

 specimen obtained measured 6 inches between the points of the op- 

 posite arms ; the largest was about 2 feet in diameter. 



The colours are very brilliant. The disk is reddish-yellow, deeper 

 in the centre ; the arms are of a bright pale vermilion, becoming 

 brick-red on the sides ; the elevated ridges are pearly-white, and the 

 marginal ridge greyish. The spines are pale red, with still lighter 

 transparent vesicles at their extremities. The mouth is deep red, 

 and all the other parts of the disk are reddish-yellow and yellowish. 



This remarkable Star-fish seems to a certain extent to form a 

 transition from the Asteriadae to the Ophiuridse. At the first glance 

 it appears to be a gigantic Ophiura with the anomalous number of 

 eleven arms, but it has the ventral fuiTOws and rows of tentacles of 

 an Asteria, and the structure of the skeleton and internal organs 

 agrees with that presented by the Asteriadee. — Fauna Littoralis 

 NorvegidB, livr. ii. pp. 95-101. 



