506 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL, XXXIV. 
(?) Cladactis Rarrnesqus, 1815. 
1815. Rarrvesquz, Analyse de la Nature, p. 153. 
A nomen nudum. 
Possibly an ophiuroid; no type is mentioned. 
Coccometra A. H. Ciarx, 1908. 
1908. A. H. CrarK, Proc. Biol. Soc. Washington, X XI, p. 128. 
Type.—Comatula hagenii Pourtalés, 1869. 
KOKKOS=a berry, a kernel-+ metra. 
Coccometra nigrolineata A. H. Cuarx, 1908. 
1908. A. H. CriarK, Proc. Biol. Soc. Washington, X XI, p. 129. 
Type-locality.—Porto Rico. 
niger=black+lineata=lined. U. S. National Museum. 
Comaster LL. Acassiz, 1836. 
1836. IL. Acasstz, Mém. de Soc. de Sci. Nat. de Neuchatel, I, 
p- 198. 
Type. Comatula multiradiata Lamarck, 1816=Asterias multi- 
radiata Linneus, 1758. 
coma=hair-aster=a star. 
It has been stated by several authors, following Miiller, 1841, 
that Comaster was based on Comatula multiradiata Goldfuss 
(not of Linnzus nor of Lamarck) (=Alecto nove-guinew J. 
Miiller), but. this is a mistake. The type of the genus is the 
species cited above. 
Comaster carpenteri A. H. CuarK, 1908. 7 
1908. A. HB. Crark, Proc. U.S. Nat. Mus, XOXOXniy p: 686: 
New name for Actinometra multifida P. H. Carpenter, 1888 
(not Alecto multifida J. Miller, 1841). 
Dr. P. H. Carpenter. 
Comaster imbricata A. H. Ciark, 1908. 
1908. A. H. Cruarn, Proc. U.S. Nat. Mus., XXXIV, p. 306. 
Ty pe-locality—Sagami Bay, Japan; 50 fathoms. Mr. Alan 
Owston. 
imbricata=imbricating. U.S. National Museum. 
Comatula Lamarck, 1816. 
1816. Lamarck, Hist. Nat. des animaux sans vertébres IT, p. 530. 
Type.—Comatula solaris Lamarck (n. sp.). 
coma=a lock of hair+diminutive suffix. 
It is a little difficult to understand just why Dr. P. H. Car- 
penter ignored this genus. In his treatment of the unstalked 
crinoids he used Antedon for the endocylic forms, Actinometra 
for the exocyclic; but he used Comatula as a general term to 
include both. Antedon was proposed to cover a single species, 
the only one, apparently, known to de Fréminville (4. gor- 
gonia=Asterias bifida Pennant); Comatula was proposed as a 
