98 ECHINODERMA OF THE InDIAN MUSEUM , PART VII. 



Comatula helianthus 1908. A. H. Clark, Proc. U. S. Nat. Mus., vol. 34, p. 440. 

 Coinanthus rotalaria, 1909. A. H. Clark. Smiths, Miscell. Coll. (Quarterly Issue), 



vol. 52, part 2, p. 205. 

 Comanthus (Comanthus) rotalaria, 1909. A. H. Clark, Vidensk. Medd. fra den 



naturhist. Forening i Kobenhavn, 1909, p. 144. 

 Comanthus (Validia) parvicirra, 1911. A. H. Clark, Proc, U. S. Nat. Mus., vol. 

 40, p. 18. 



Localities. — Girada, Balnchistan.^Two specimens ; one has twenty-five arms 

 (>0 mm. long; the other is smaller with twenty-one arms. 



Galle, Ceylon. — Ten specimens; one has twenty arms 75 mm. long, one IIBr 

 series being absent and one IIIBr 4 (3-|-4) series being present; one has thirty- 

 five arms 100 mm. long, the IIIBr series being all present on three of the rays : 

 two are present, developed exteriorly, on one, and one, developed interiorly, on 

 the fifth ; one specimen with twenty-two arms 75 mm. long ; one medium-sized 

 specimen with twenty arms; one small specimen with twenty-two arms 70 mm. 

 long; one specimen with twenty-one arms 75 mm. long, three IIIBr series being 

 present and two IIBr series absent ; one specimen with thirty-five arms ; one 

 specimen with twenty arms fiO mm. long ; one specimen with thirty-one arms 

 75 mm. long; and one small eighteen-armed example. 



Off Table Island; 15-35 fathoms. — One .specimen with eight IIIBr 4 (.3 -|- 4) 

 series developed, and two IIBr series lacking; two of the IIBr series are 2. 



Port Blair, Andaman Islands. — One example with thirty-four arms 110 mm. 

 long; all the IIBr and fourteen IIIBr series are developed, the latter in 1,2,2,1 

 order, except where there are four on a ray. One of the IIIBr series is 2, the 

 remaining thirteen being 4 (3-|-4). 



Andamans ; surf line. — One specimen with twenty-eight arms 110 mm. long. 

 Arulamans. — Three small and medium-sized examples. 



Off Cantor's Island (12° 12' N. lat., 98° 15' E. long.); S fathoms.— Onv 

 specimen with several IIIBr series developed. 



? India. — One specimen with twenty arms 150 mm. long; the calyx and arm 

 bases are no larger than in specimens with half the arm length of this individual, 

 but the arms are greatly attenuated and elongated. I have previously shown 

 that the excessive attenuation and elongation of the arms is a somewhat frequent 

 variation in Comatula pectinata,^ but it has not previously been reported in the 

 <^enus Comanthus. This is a variation in the direction of the permanent condi- 

 tion found in Uintacrinus. 



Other Records. — "Australia"; northwest Australia; Prince of Wales 

 Channel ; Torres Straits ; Tliursday Island ; Port .Molle and Port Denison, Queens- 

 land ; Warrior Reef; Cape Baudin ; Bassett-Smith Bank; Fremantle, western 

 Australia; Samoa; Fiji; Tonga; Vavao, Friendly Islands; Pelew Islands; 

 Gilbert I.slands; Timor; New Caledonia; Mortlock Island, Carolines; Batjan , 



' Vidensk. Medd. fra den naturhist. Forening i Kijbenhavn, 1909, p. 149. 



