582 s. GOTO : 



reëxamiiH'il Gray's tyyte, tliîs sj^vcios Ix'longs to .-i difteivnt genns. He re- 

 feiTed it to his section C of Fentcnjcrnnster. It lias spiinilose margiiijil plates, 

 and also Aalvnlar ixidicellarifp. It is probably an immature species of Tosla 

 or of stmie closely isolated genus." 



IjUDWTG ['99, p. 589] mentions GoniocUscns scha' from tlie Zanzil)ar re- 

 gion, "von Hx) (Quoriml)a) durch Peters (1852), von den Seychellen duich 

 DÖDERLEIX (1898)." He also mentions " 6'«?aVoj:)Oi/rt??(7«Z«r/s Gray (vielleicht 

 identisch mit C. jUnna Hmîtiauij, von Mos;xmbique durch Perrter (1875) " 

 ['99, p. 540]. 



Bedford describes G. novœ-guineœ, var. orcnosa from Singapore [:0(), p. 

 29G]: 



"Loccditij. This species is fairly common on Pulo Keugkam, Singaj^xa'e, 

 between tide-marks on the reef ; it Mxe?, in company with, and appears to 

 liave a mode of life similar tt), the large tropical s[)ecies of Bhidlcria. 



*' Distribution. This variet}' has j)reviously been recorded from Amboina, 

 Cei-am I^ant, and tlu^ Sandwich Islands. 



" Unfortunately I have only examimid one specimen with care, so that 

 I do not knoA\' A\'hether the other recorded ^"arieties of the s^^ecies also occur 

 in the district. This specimen nmst cerbiinly be regarded as the C. arenosa 

 of Perrier ; the pore-areas are not distinct from (\ach other Imt tend to 

 unite over the Avhole abactiual surface, leaving small, distinct islands wliich 

 are devoid of pores and granular, the larger of these spaces being about 

 the same size as the madreporite; they are devoid of large spines, thus 

 differing from typical arenosa and approaching C. coriarca M. k T. The 

 madreporite is an irregular oval structure, and is quite prominent, being 

 bordered Avith a few large blunt spines ; it measures IP) mm. x 6.5 mm. 



" Dr. D()DERLErN has shown that C novœ-guinec^ diffei-s from the AVest- 

 ern species C. sclnnûlefian" in tlu^ character of granulation of tlu^ venti'O- 

 latenils, the larger granules not being divided up into distinct groups cor- 

 ros]^K)nding to the subjac(mt plates in tht> former. In the S[)ecimen now 

 describi'd this holds good, and parallel t<» the ambnlacral furrow up to 

 within a distance of about 7 nun. from it the granules enlarge gradually up 

 to the fiuTow, A\li(n-e th(y fonn a conspicnous edging; in the adambulacral 



