no. 1808. RECENT AFRICAN CR1NOID8— CLARK. 19 



Actinometra parvicina (part) P. H. Carpenter, Challenger Eeports, vol. 26, 



Zoology, 1888, p. 338. 

 Actinometra rotalaria P. H. Carpenter, Challenger Reports?, vol. 26, Zoology, 



1888, p. 313. 

 Actinometra guttata (Lutken MS.) Hartlaub, Nova Acta Acad. German., 



vol. 58, No. 1, 1891, p. 96. 

 Comatula orientalis A. II. Clark, Proc. U. S. Nat. Mus., vol. 33, 1907, p. 155. 

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

 Comanthus rotalaria A. H. Clark, Smiths. Misc. Coll. (Quarterly Issue), vol. 52, 



pt. 2, 1908, p. 205. 

 Comanthus (Comanthus) rotalaria A. H. Clark, Vid. Medd. fra den naturhist. 



Forening i K0benkavn, 1909, p. 144. 



Locality. — Seychelles; two specimens in the British Museum were 

 collected by the Sea Lark expedition, under Prof. J. Stanley Gardiner. 



Depth. — 34 fathoms. 



Remarks. — In the Berlin Museum there are some immature comas- 

 terids from the Seychelles and some others from the Red Sea, the 

 latter collected by Dr. R. Hartmeyer, which may belong to this 

 species. 



According to the data given by Carpenter in the Challenger report, 

 the first available name for this species is Comatula rotalaria of 

 Lamarck, Carpenter's figure of Actinometra rotalaria clearly repre- 

 senting this species. Upon examining Lamarck's types at the Paris 

 Museum, however, I found that his rotalaria is the species called 

 Actinometra jukesii by Carpenter and Actinometra paucicirra by Bell, 

 so that Miiller's parvicirra becomes the earliest available name for 

 the present form. 



Miiller's Alecto wahlbergii must be eliminated from the synonymy 

 of Comanthus parvicirra, in which it was included by Carpenter, as 

 it has proved to be quite a different thing, a species related to C. 

 trichoptera of southern Australia and not to C. parvicirra at all. 



COMANTHUS (? species). 



Locality. — Cape St. Andre, Madagascar. 



Depth. — About 30 meters. 



Remarks. — Dr. P. R. Joly dredged in 1901 a single small specimen, 

 undergoing adolescent autotomy, of some species of Comanthus. 

 The cirri are XIII, 13-14; there are twenty-three arms; one of the 

 internal IIIBr series is 2, all the other division series being 4 (3 + 4). 

 The rays bear 4 (3 + 1), 5 (1 + 4), 5 (4 +1), 2, and 7 (4 + 3) arms respec- 

 tively. The cirri are rather more developed than is usual in C. 

 parvicirra, with which the specimen otherwise agrees fairly well, and 

 are rather more compressed and curved distally. The interradial 

 perisome is strongly plated. 



