NO. 1623. NOMENCLATURE OF RECENT CRINOIDS—CLARK. 507 
term to include all the living free crinoids, and eight species are 
included by Lamarck under that heading, no particular one 
being selected as the type; his generic diagnosis, however, is 
quite explicit; it-reads, “bouche inférieur, centrale, isolée, 
membraneuse, tubuleuse, saillante.’” This obviously refers to 
the anal tube, taken by Lamarck for the mouth, and makes it 
plain that this diagnosis was drawn up from an exocyclic 
species; in other words, Comatula, as originally defined by 
Lamarck, is practically the same as Actinometra as rediagnosed 
by Doctor Carpenter. Subsequent authors have all either ac- 
cepted Comatula for all free crinoids, or (following Carpenter) 
abandoned it altogether; the genus has never been revised. It 
becomes necessary, therefore, to decide upon a type, and we have 
no choice but to accept the first species, Comatula solaris, which 
species, moreover, accords perfectly with the generic diagnosis 
drawn up by Lamarck. Actinometra was founded by Miiller 
in 1841, the type being Actinometra imperialis, a species de- 
scribed at the same time; but Actinometra imperialis is a syn- 
onym of Comatula solaris, as Miiller himself discovered later, so 
Actinometra Miiller, 1841, is a pure synonym of Comatula La- 
marck, 1816, being based on the same species as type. 
Comatula actinodes Dusarpin and Hurps, 1862. 
1862. DusarpiIn and Huprr, Hist. Nat. des Zooph. Kchin., 
p- 208. 
A nomen nudum. 
3 e 
aktivoelons=like rays. 
Comatula adeone Lamarcr, 1816. 
1816. Lamarck, Nat. Hist. des Animaux sans Vertébres, IT, 
“p. 939. 
Type-locality.—New Holland. M. M. Péron and le Sueur. 
Paris Museum. 
Adeona=a genus of hydroids. 
This species has never been properly described, and has never 
been figured, so that its true status and affinities remain uncer- 
tain. The multibrachiate “ Comatula adeone” figured by de 
Blainville, is, of course, a case of misidentification. It is a copy 
of the figure illustrating the Comatula multiradiata of Audouin 
(not of Lamarck) from the Red o, upon which BE er S name 
savignit is based. 
Comatula annulata Risso, 1826. 
1826. Risso, Hist. Nat. des principales productions de VEurope 
angeidhiomelle. NG Ps AN 
Type-locality.—Nice. 
annulata=banded. 
