72 " ENDEAVOUR " SCIENTIFIC RESULTS. 



outer series of actinolaterals these spines are somewhat smaller 

 and intergrade with similar spinelets on the inferomarginals. 

 Papulge and small pedicellariae occur between the second and 

 third series of actinolaterals. 



Adambulacral plates numerous, about 13 to 5 adjoining 

 actinolaterals at base of arm ; armature diplacanthid, the 

 spines 1.5-2 mm. long, the inner ones pointed, the outer blunt 

 and slightly flattened ; between the two series occur numerous 

 very large pedicellarise, those near the mouth being distinctly 

 felipedal ; pedicellarise both large and small occur also within 

 the ambulacral furrow. Oral plates, each with 4 spines, an 

 inner proximal at the tip of the jaw, 2 mm. long, moderately 

 stout and pointed ; an outer proximal at the corner of the 

 jaw, much smaller and extending outwards across the furrow ; 

 and two actinal spines behind the inner proximal, similar to 

 it, but longer and stouter and forming with it a longitudinal 

 series of 3 ; there are also numerous small pedicellarise and 

 one or more of the big felipedal ones. Tube-feet in 4 distinct, 

 not greatly crowded series. Colour (dry), brownish-yellow. 



This Starfish is undoubtedly a Stichaster in the old broad- 

 sense, but Verrill has well shown, what others have suspected, 

 that Stichaster was a heterogeneous and unnatural assemblage. 

 The present species shows some affinity to Asteracanthion 

 luridum, Philippi {=Asterias sulci f era, Perrier) of southern 

 South America, for which Sladen made the subgenus Cosmas- 

 terias. Verrill has raised the group to generic rank, in- 

 cluding certain species which Sladen considered Stichasters- 

 and I think his action is correct and wise. The genus is 

 characteristic of southern South America and that vicinity, 

 so that the discovery of a species which seems to belong to it, 

 in deep water south-east of Australia is of considerable interest. 

 The Australian species is easily recognised by its general 

 facies, short, capitate, scattered spines and adambulacral and. 

 oral armature. 



Loc. — South of Gabo Island, Victoria, 200 fathoms. 



Genus Coscinasterias, Verrill. 



COSCINASTERIAS CALAMARIA {Gray). 



Asterias calamaria, Gray, Ann. Mag. Nat. Hist., vi., 1840, 



p. 179. 

 Coscinasterias calamaria, Perrier, Exped. Sci. du " Travail- 



leur" et du "Talisman," Echinod., 1894, p. 106. 

 This individual has 11 arms, of which 3 are very small; for 

 the others, R=60 mm. There are no large pedicellarise any-^ 



