

Miscellaneous. 385 



discus comiculatus (Linck), Archaster temiispinus (Dub. & Kor.), A. 

 Parelii (Diib. & Kor.), Korethr aster hispidus, W. Thorns., and Bri- 

 singa coronata, 0. Sars. 



Of new species the following are indicated, bat not described, by 

 the authors, either in the paper cited or in a continuation of it, with 

 an advanced copy of which we have been favoured by them : — 

 Asterias spitzbergensis, Solaster glacialis (some particulars of which 

 are, however, indicated in the authors' remarks on that genus), 

 Tylaster (g. n.) Willei, and Poraniomorpha (g. n.) rosea. 



The species described are : — 



1. Asterias Gunneri. — Proportion of radii 1 : 5£; disk broad, with 

 a few isolated spines; 5 thick arms, the backs with 5 rows of 

 strong spines, encircled by cruciform pedicellarise ; similar pedicel- 

 lariae scattered over the whole back ; sides of arms with a row of 

 26 strong spines surrounded by cruciform pedicellariae ; two rows 

 of ambulacral papillae, the outer the longest, and outside the am- 

 bulacra], papillae a row of 32 long strong spines, half surrounded 

 by cruciform pedicellariie ; dermal skeleton strong. Colour above 

 bright red ; the pedicellariac surrounding the spines form white tufts. 

 Ventral surface yellowish white. Prom Spitzbergen, in GO fathoms. 



2. Asterias hypcrlorea. — 5- rayed ; proportion of radii 1:6; 

 back with short, thick, close-set spines, surrounded by 2 or 3 cruci- 

 form pedicellaria), placed one above the other ; in the middle and at 

 the sides of the arms the spines stand in regular rows ; between the 

 spines 1 to 3 tentacle-pores in the naked skin ; two rows of ambu- 

 lacral papillae. Colour tile-red. From Bear Island, in 35 fathoms. 



3. Stichaster arcticus. — 5-rayed, small, convex above, flat be- 

 neath. Proportion of the radii 1:5. Back covered with groups 

 of clavate spines, forming regular rows on the arms. Tentral mar- 

 ginal spines spatuliform, arranged in pairs. Anal aperture sub- 

 central. Madreporic plate flat, nearly concealed by spines. Colour 

 pale yellowish red ; feet dark yellow. From Station 173 ; N". lat. 69° 

 17', E. long. 14° 42', in 300 fathoms, on mud with stones. Temp. 

 4°-6C. (=40°-3F.). 



4. Asterias Nbrmani. — 5-rayed ; diam. 20 millim. ; proportion 



of radii 1 : 3^-. Back rather convex, covered with isolated, rather 

 flattened, toothed, oval spines, which are broader at the summit . 

 and usually closely enclosed by a thin transparent membrane, a 

 continuation of the skin, and also by a tubular sheath, wider above, 

 in which the spine is placed, as in a niche, the sheath being able to 

 close up so as to conceal the whole spine except the extreme tip, or 

 to contract so as to form only a narrow ring surrounding its base. 

 The spines are closer and more irregularly placed on the disk than 

 on the arms. The anal aperture is subcentral, and surrounded by 

 small spines of the same kind ; and the madreporic plate, which is 

 near an interbraehial angle, is nearly round and has a radiate ap- 

 pearance at the margins. Ventral marginal spines sheathed ; 

 sheaths bearing at apex a cruciform pedicellaiia. Colour yellowish 

 red on the back ; spines and their sheaths white. Ventral surface 

 white. From Station 315; N. lat. 74° 53', E. long. 15 c 15', at 

 180 fathoms, firm clay and sand. Temp. 2°-o C. (=36°-5 F.). 



