106 Mr. E. A. Smith on Species of 



Diameter between extremities of opposite arms 6 inches ; 

 diameter of disk l-r\- inch. 



Var. With the spines on the upper surface longer and acute. 



Hab. Royal Sound, Kerguelen's Island. 



The specimens which I associate with this species differ 

 from the type of it described by M. Perrier in a few particulars. 

 In one example the ambulacral spines are not constantly in a 

 double row ; towards the mouth they are in but a single series, 

 and only become double at intervals up the rays. This spe- 

 cimen has the spines on the upper surface blunt and short, as 

 in the type ; but another example differs, being covered with 

 longer conically acute mobile spines. 



Asterias Perrieri^ sp. nov. 



Radii sex, cyliudraceo-attenuati, ad latera supraque rotundati, inferne 

 anguste complauati ; discus mediocriter magnus, diametri maxima) 

 circiter f aequans ; sulci ambulacrales baud latissimi; spime am- 

 bulacrales serie unica (in exemplo maximo longitudiiie circiter 

 3 millim.), subgraciles, latitudine sequales, ad apicem baud cla- 

 vatae, modo rotundatae ; spinae ventrales serie duplici, prope spinas 

 ambulacrales sitae, in paribus divergentibus (vel magis infrequenter 

 spiuis tribus), spina intimaquam caeterae majore, atque quam am- 

 bidacrales breviore sed crassiore, aliquantoque acuminata ; super- 

 ficies dorsalis et lateralis spinis raimitis brevissimis, paulo conicis, 

 irregulariter sparsis munitae, interque spinas papulis inuumerabi- 

 libus instructae ; tessella madreporiformis parviuscula, ad medium 

 inter disci centrum et marginem sita. Color saturate fusco-rufus. 



Diam. extrema (6 poll.) 150 miUim. 



The ventral spines are in pairs (except near the base of the 

 arms, where there are three or four single ones), the two spines 

 diverging from their bases, where they are adjacent ; they are 

 rather thick and conical, the inner one being somewhat the 

 larger. The spines on the sides and dorsal surface are very 

 minute, very numerous, and irregularly disseminated, except 

 along the side of the arms near the base, where there appears 

 to be a single continuous series ; and all the spines of this 

 species are granulously roughened. 



The largest specimen has a cluster of some hundreds of young- 

 ones clinging to the ventral disk. They are all invariably 

 six-rayed, have only two rows of ambulacral tentacles and a 

 single series of spines bordering them. The rays are very 

 short and broad, nearly as broad as long, the lateral dorsal 

 margins with a single row of large spines, and a similar series 

 down the centre of the rays. 



A. rugispina of Stimpson is allied to this species, Avith which 

 I feel much pleasure in associating the name of M. Edmond 



