PEDICELLATA. poe 
spines ; the’ little fleshy feet also issue from each side between the 
origin of those spines *; and 
Those in which there are none of these lateral spines, but where 
the rays are covered with imbricated scales, and resemble tails of ser- 
pents. The central disk, in each interval of its rays, and on the 
side where the mouth is placed, is marked by four holes which ex- 
tend into the interior of the animal, serving perhaps for respiration, 
or, according to the others, for the issue of the ova. Their only feet 
are in five short grooves, which form a star round the mouth f. 
The GorconocEePpHALe, Leach f, called Euryates by M. de La- 
marck, are those in which the rays are dichotomously divided. In 
some this division commences at the base of the rays, presenting the 
appearance of a bundle of serpents—they are commonly called Me- 
dusa’s Head§. ‘There are two preceding holes at the base of each 
ray. 
Ti others, however, this division only commences at the end of the 
rays, and is not often repeated ||. 
‘We should also separate the 
Avecro of Leach, called Comaruta by M. de Lamarck. They 
have five large articulated rays, each of which is divided into two or 
three, bearing two ranges of articulated threads; these five rays are 
attached to a petrous disk, also furnished, on the side opposite to the 
mouth, with one, two, or three ranges of articulated threads without 
branches, shorter and more slender ‘than the large rays, and by which 
the animal is said to fix itself. The sac which contains the viscera 
is situated in the centre of the large rays, opening by a stellated 
mouth and a second and tubular orifice which may be the anus 4. 
It is in the vicinity of the ComaruLa that we must place the 
Encrrnus, Guett. **, 
Which might be defined +} as Comatule with a prolonged disk and a 
multiarticulated stem. The branches themselves are articulated and 
dichotomously ramose, bearing ranges of articulated threads; the 
stem being furnished with smaller ones at different heights; the 
mouth is in the centre of the rays, and the anus on one side. 
* Ast. nigra, Mill., Zool. Dan., d, XCIII ;—A. tricolor, Ib., XCVIL; A. fragilis, 
Ib., XCVIII ;—A. filiformis? Ib., LIX ;—A. aculeata, Link., XXVI, 42; Miill., 
Zool. Dan., XCIX ;— Ophiura echinata, Lam.; Encye., CXX1V, 2, 3;—Oph. cili- 
aris, 1b., 4, 5 ;—Oph. lumbricalis, Ib., 1. 
+ Asterias ophiura, L.; Ophiura lacerta,, Lam., Encye, CXXIII, 1, CXXIT ;— 
Oph. texturata, Id.; Link., II., 4; Eneye. CXXIII, 2, 3 ;—Oph. cuspidifera, Lam.? 
Encyc., CXXII, 5—8s. 
t Zool. Miscel., No. 16, p. 51. 
§ Asterias caput Meduse L.; (Euryale asperum) Lam.; Link., XX, 32; Encye. 
CXXVIL ;—Euryale muricatum, 1b., CXXVIIT and CXXIX ;—Asferias euryale, Gm. 
(Euryale costosum) Ib., CXXX; Link., XXTX and XXX. 
|| Euryale palmiferum, Lam., Encye., CXXVI. 
§| Asterias multiradiata, Zool. Miscel., loc. cit., L,; Link. XN, 33, XXII, 34; 
Encye. CXXV ;—Ast. pectinata, L; Link., XXXVIT, 66; Encyc. CXXIV, 6, Egypt. 
Echin. I, 1, 2, &c. 
** Acad. des Sc., 1755, p. 224. 
++ See Schweigger, Hist. Moll. et Zooph., p. 528. 
VOL. IV. | 5) 
