1862.] M.0.A.L. MORCH’s REVIEW OF THE VERMETIDE. 65 
Serpula, pp., L. S. N. ed. x. pp.* 
Tulaxodes, Guettard, Mém. 1774, vol. iii. pp. 143, 152. 
Thylacodes, Agass. Nomencl. p- 370, et Herm. Index, ii. 
Serpulus, Montf. 1810, Conch. Syst. pl. 22, sed non deser. 
Serpule concamerate, Schmidt, 1818, Beste Einricht, p. 215. 
? Lemintina, Risso, 1826, Hist. iv. p. 114. 
Serpulorbis, Sassi, Journ. Ligust. di Se. Sept. 1827, v. p. 482 ; 
Sassi, Fér. Bull. 5. xix. 1829, p.' 123: 
Cellularia, Schmidt, MOll. Cat. Mus. Gotha, 1833, p. 70 (non 
Pallas). 
? Hatina, Gray, Synops. Brit. Mus. 1842, pp. 62, 90; 1844, 
. 62. 
= Serpuloides, Gray, Figures, 1850, iv. p. 83; Guide, 1857, p. 127. 
Guettard established this genus chiefly on account of the internal 
septa, the presence of which in his genus Campulotus (Vermetus, 
Adans.) was unknown to him. The latter genus was distinguished 
by regular spiral whorls, and included not only Vermiculus, but even 
Scala scalaris, L. Guettard states (J. ¢., p. 152) that he chiefly 
founded his genus on the genus Certium of Gualtieri, which con- 
tains principally the large Mediterranean species. 
Lemintina (Risso) is generally regarded as a badly observed spe- 
cies of this genus, from which it differs in the want of the pedal 
filaments. The curious feather-like bodies represented by Risso are 
described thus :—“ La bouche est fendu en long, placé sur un trompe 
ou mamelon conique au sommet de la téte, laquelle est surmontée 
d’un petit panache blanc, qui sont les branchies.”” I believe this 
supposed gill is the lingual membrane, which seems to me very pro- 
bable upon comparing the description with the description of the 
tongue of Vermetus by Lacaze Duthiers, in ‘ Annales des Sciences,” 
1859, xi. p. 208. 
The genus Hatina, Gray (olim), founded on Vermetus inopertus, 
Riippel, has no pedal filaments ; but it is possible that the male organ 
is in reality one of the filaments, the other either being overlooked or 
forgotten by the artist. But it must be observed that the filament 
represented is situated in the place which the male organ usually oc- 
cupies in allied families. V. Siebold denies entirely the existence 
of an exterior male organ; and no author has described it since. 
The radiating lines on the tip of the metapodium, represented by 
Philippi, but not described,-and regarded as a generic character by 
Dr. Gray, are not to be seen on specimens in spirits ; they are pro- 
bably nothing more than coloured lines. The lid is wanting, but 
Bivona mentions that it has an “ operculum minimum punctiforme.” 
A similar minute operculum, concealed in a fold of the foot of the 
Dofan, is described by Adanson. The animal appears, like the other 
Vermetidée, to be viviparous. The egg-cases and larvze are described 
by Philippi (Wiegman’s Archiv f. Naturg. 1839, p. 128), and illu- 
strated by a figure from Scacchi, but more extensively by Schmarda 
* “ Szepe isthmis integris passim intercepta.” But the animal is described as 
an Annelid. 
Proc, Zoou, Soc.—1862, No. V. 
