REPORT ON THE ASTEROIDEA. 



401 



Pacific : Three species between the parallels of 40° (?) N. and 30" S. 



Fromia jajponica, from Japan. Fromia balansse and Fromia 

 milleporella, from New Caledonia, the latter extending into the 

 Eastern Archipelago and Indian Ocean. 



/3. Bathymetrical range : All the known species are probably confined to shallow water. 

 y. Nature of the Sea-bottom: Recorded in few cases. Fromia milleporella on Coral 



reefs 



Chorological Synopsis of the Species herein mentioned. 



1. Fromia milleporella (Lamarck), Gray. 



Asterias milleporella, Lamarck, 1816, Hist. nat. anim. s. vert., t. ii. p. 564. 



Linckia milleporella, Miiller and Troschel, 1840 (April), Monatsber. d. k. preuss. Akad. d. Wiss. Berlin, 



p. 103. 

 Fromia milleporella, Gray, 1840 (December), Ann. and Mag. Nat. Hist., vol. vi. p. 286. 

 Scytaster pistorius, Miiller and Troschel, 1 842, System der Asteriden, p. 35. 

 Scytaster milleporellus, Micbelin, 1845, Faune de l'lle Maurice, Mag. de Zoo!., p. 22. 

 Lincliia (Scytaster) milleporella, v. Martens, 1866, Archiv f. Naturgesch., Jahrg. xxxii., Bd. i. p. 69. 

 Linckia pistoria, v. Martens, 1869, v. d. Decken's Reisen in Ost-Africa, Zool., p. 130. 



Locality. — Kandavu, Fiji Islands. On the reefs. 



Remarks. — These examples, which are rather small, are short in the ray, and notice- 

 able for having a number of the abactinal plates near the end of the ray convex and sub- 

 tubercular, and bearing two or three granules larger and more prominent than the rest. 



Genus Ophidiaster, Agassiz. 



Ophidiaster, Agassiz, Prod. Monogr. d. Radiaires, Mem. Soc. Sci. Nat. Neuchatel, 1835, t. i., p. 191. 



Dactylosaster, Gray, Ann. and Mag. Nat. Hist., 1840, vol. vi. p. 283. 



Tamaria, Gray, Ann. and Mag. Nat. Hist., 1840, vol. vi. p. 283. 



? Cistina, Gray, Ann. and Mag. Nat. Hist., 1840, vol. vi. p. 283. 



Eacelia (subgen.), Gray, Ann. and Mag. Nat. Hist., 1840, vol. vi. p. 284. 



Linckia (pars), v. Martens, Archiv f. Naturgesch., 1865, Jahrg. xxxi., Bd. i. p. 351. 



This genus, as limited by Perrier, is a well-defined group, distributed over a wide 

 area. Ophidiaster occurs chiefly in tropical seas, and does not extend beyond the warm 

 temperate regions ; it is a shallow water form, usually frequenting the Littoral zone. 



(ZOOL. CHALL. EXP. PART LI. — 1888.) 



51 



