154 NEW- YORK FAUNA MOLLUSCA. 



GENUS VELUTINA. Blainville. 



Animal scarcely spiral : edge of the manlle simple in front, and double in its circumference ; 

 the inner lip being thicker and tentacular. Tentacles large, conic, distant, with a frontal 

 veil between them : eyes sessile at the base. Respiratory cavity large, with no trace of 

 tube, and with two unequal oblique pectens. Orifice of the ovary at the base of the male 

 organ, which lies at the origin of the right tentacle. Muscular impression crescent-shaped. 

 Shell small, thin, subglobose, patelliform, composed of two rapidly enlarging volutions : 

 aperture subovate ; lip thin, not joined behind. Usually covered with a velvet-like or 

 powdery epidermis. 



Velutina laevigata. 



TLATE XXIII. FIG. 251. 

 Helix Itevigata. LlN. 



Velutina capuloidca. Blainville, Malacol. pi. 42, fig. 4. 



V. rupicola. Conrad, Jour. Acad. Nat. Sci. Vol 6, p. 2G6, pi. II, fig. 17, 13. 

 V. id. Rossel, Essex Jour. Nat. Hist. Vol. 1, p. 66. 



Galmciilumlavigatum. Brown, Conch, pi 38, figs. 35. 36. 

 V. laevigata. Gould, Inverlebrata of Mass. p. 241, fig. 159. 



Description. Shell small, oval, very thin and fragile. Whorls three ; the body-whorl with 

 faint concentric stria; : spire slightly raised, smooth at the apex. Aperture regularly oval. 

 Epidermis, when not abraded, thick and raised, more conspicuous on the concentric lines. 



Color. Epidermis dusky brown, with numerous revolving raised rufous lines ; these are 

 slightly irregular and raised, amounting to twenty or twenty-two on the body-whorl : within 

 pearly white. Length, 0'3; of aperture, 0'25. 



This is found among seaweed, and in the stomachs of fishes on the northern coast. It 

 occurs on the shores of Europe. 



Velutina zonata. 



PLATE XXIII. FIC. 253. 



Galericulum ovatum? Coutiiouy, Bost. Jour. Nat. His. Vol. 2, p. 110. 

 Velutina zonata. Gould, Invertebrata of Mass. p. 242, fig. 160. 



Description. Shell small, ovate, moderately thin ; spire not raised. Whorls three ; the two 

 upper faintly distinct: suture deeply impressed. Surface with a calcareous coating, minutely 

 striated with revolving lines and superficial concentric furrows. Aperture regularly oval : 

 lip expanded, exceedingly thin and fragile ; pillar-lip flattened, and with a small superficial 

 fold. 



Color. Epidermis whitish or reddish brown, with numerous bands of brown : pillar white. 



Length. 0"4. Width, 0-5. 



I am not aware that this species, which has been found along the shores of Massachusetts, 

 and obtained from the stomachs of fishes, has been yet detected on the coast of this State. 



