The acoustic (?) sacks are situated some way below the basal articulations of the first cirrus.
2. Alepas parasita.
Alepas parasita. Sander Rang. Man. des Mollusq., p. 364, Pl. viii, fig. 5, 1829.[44]
Anatifa univalvis. Quoy et Gaimard. Annales des Sciences, Nat., tom. x, p. 234, 1827, Pl. vii, fig. 8.
——— parasita. Quoy et Gaimard. Voyage de l’Astrolabe, Pl. xciii, 1834.
Triton (Alepas) fasciculatus. Lesson. Voyage de la Coquille. Mollusc. Pl. xvi, fig. 6, tom. ii, part I, 1830, p. 442.
[44] M. Sander Rang rejects the specific name “univalvis,” as signifying a generic character, and he has been followed in this by MM. Quoy and Gaimard themselves. This, according to the Rules of the British Association, would hardly have been a sufficient reason, but it appears that A. parasita, like A. minuta, has a pair of horny scuta or valves; and, therefore, the name univalvis is too obviously false to be retained. With respect to the generic name Triton, I fully believe that it was applied by Linnæus to the cast-off exuviæ of sessile Cirripedes.
A. aperturâ non prominente, capituli longitudinis 2/3 æquante: scutis corneis: longitudine totâ ad 2 uncias.
Orifice not protuberant, equalling two thirds of the length of the capitulum: scuta horny. Total length two inches.
Animal unknown.