ACTINOGONIDIATE ECHINODERMS. 225 



II. Genus Actinometra. 



Younsr forms were obtained off the coral masses of the west reef of Hulule. It is 

 noticeable that neither this genus nor Antedon was found in the lagoon nor on the reefs of 

 Minikoi. 



6. Actinometra typica. 



Phanogenia typica, Lov6n, Ofv. Vet. Akad. Fork 1866, p. 231. 

 Actinometra typica, P. H. Carp. op. cit. p. 296. 

 Suvadiva, 42/., hard sand. 



7. Actinometra fimhriata. 



Comatula fimhriata, Lamk. Anim. s. Vert. ii. (1816), p. 534. 



Actinometra fimhriata, P. H. Carp. op. cit. p. 317 ; Hartlaub, Nova Acta Leop. Carol. 

 Akad. LViii. (1891), p. 102. 



Dr Hartlaub has already called attention to a specimen which he referred to this species, 

 part of which was, in the terminology of Carpenter, bi-, and the other part tri-distichate. 

 Several specimens in the present collection exhibit the same striking peculiarity; in 1894 

 {P.Z.S. p. 398) I adduced evidence against the value of the syzygy as a specific character; now 

 doubt is thrown on the safety of the number of the distichals. 



From the western reef-edge, Hulule, and dredged six times in five atolls, 24 — 35/, rubble 

 or sand, mud or weed. 



8. Actinoynetra multiradiata. 



Asterias multiradiata, Linn. Syst. Nat. (1758), p. 663. 



Comatula inidtiradiata, Lamk. Anim. s. Vert. II. (1816), p. 533. 



Actinometra multiradiata, Duj. and Hup6, Echinodermes (1862), p. 210 ; P. H. Carp. Chall. 

 Rep. (1888), p. 322. 



Hulule, 15 — 20/., from slope of western reef, hard bottom. 



9. Actinometra sentosa. 



Actinometra sentosa, P. H. Carp. op. cit. p. 325. 



N. Male, 25 and 27/., coral masses and coarse sand. 



10. Actinometra maculata. 



Actinometra maculata, P. H. Carp. op. cit. p. 307. 



From the west reef of Hulule, and very commonly seen at shallow depths on lagoon reefs 

 in all the more open atolls of the Maldives. 



29—2 



