REPORT ON THE TETRACTINELLIDA. 
387 
Heterojphymia heteroformis, Ctr., p. 
343. 
Corallistes (f) elegantissima, Ctr., p. 
338. 
,, (f) aculeata, Ctr., p. 338. 
„ {?) verrucosa, Ctr., p. 339. 
,, thomasi, n. sp., p. 307. 
Callipelta ornata, n. sp., p. 309. 
Pleroma turhinatum, n. sp., p. 312. 
Scleritoderma jlabelliformis, n. sp., 
p. 316. 
Siphonidium capitatum, n. sp., p. 317. 
Azorica pfeifferae, Ctr., p. 319 (L.C.B.). 
„ chonellides, Slnka., p. 349. 
„ marginata, n. sp., p. 323. 
Tretolophus pamceus, n. sp., p. 325. 
South Australian. 
Chrotella simplex. Soli., p. 17. 
Craniella simillima, Bwk., p. 36. 
,, pulcJii'a, n. sp., p. 37. 
Tetilla australiensis, Ctr., p. 43. 
,, stipitata, Ctr., p. 49. 
TheTfiea grayi. Soil., p. 55. 
Pilochrota lendenfeldi, n. sp., p. 134. 
Anihastra aeruginosa, Ctr., p. 183. 
„ communis, Soil., p. 140. 
„ mammilliformis, Ctr. , p. 1 8 3. 
„ parvispicula. Soil., p. 145. 
Anthastra pulchra. Soil., p. 138. 
,, pyriformis. Soil., p. 146. 
Discodermia discifurca, 
Anthastra ridleyi. Soil., p. 149. 
Stryphnus niger, Soil., p. 171. 
Tethyopsis radiata, Marshall, p. 190. 
Ecionema hacilliferum, var. rohustum, 
Ctr. 
Psammastra murrayi. Soil., p. 175. 
„ geodides, Ctr., p, 200. 
Algol corticata, Ctr., p. 200. 
Erylus lendenfeldi, n. sp., p. 239. 
Geodia carteri, n. sp., p. 247. 
„ femingii, Bwk., p. 259. 
Cydonium eosaster. Soil., p. 225. 
Synops nitida. Soil., p. 231. 
n. sp., p, 292. 
Indian Antarctic, or Kerguelian. 
Tetilla coronida. Soil., p. 9. 
,, grandis, Soil., p. 10. 
„ ,, var. alba. Soil. p. 13. 
Cinachyra harhata. Soli. 
Thenea delicata. Soil., p. 60. 
Pcecillastra schulzii. Soli., p. 79. 
It may add to the usefulness of these tables if I now point out those species that 
appear to me to be particularly characteristic of the regions in which they occur. In the 
Arctic these are : — Tetilla geniculata, Craniella abyssorum, Craniella cranium, Thenea 
muricata, Poecillastra compressa, and Pachymatisma normani ; possibly Dercitus 
bucUandi should be transferred from the Lusitanian province to this ; it may be a 
northern form which has extended southwards, as its absence from all regions outside 
the British area would seem to show ; if this should prove to be the case, it would add 
a highly characteristic species to the Arctic province. 
