GASTEROPODA. TRITONIADZ. | 23 
1. Eoripia Cuvieri. Pilate VII. fig. 3. 
E. levis, branchiis acuminatis. 
Doris papillosa, Mill. Zool. Dan. 99. 1-4; Encycl. Méth. Vers. 
pl. 82. fig. 12. 
Eolis, Cuv. Ann. du Mus. vi. 433. pl. 61. figs. 12, 13. 
Tritonia papillosa, Mont. Trans. Linn. Soc. xi, 16. t. 4. fig. 3. 
Kolidia papillosa, Cuv. Reg. Anim. i. 393. 
Eolis Cuvierl, Lam. H. N. des An. sans Vert. vi. 302. 
Eolidia Cuvieri, Blainv. Dict. des Sc. Nat. xiv. 558. 
Habitat in mari Britannico satis frequens. 
Body and branchiz smooth, of a pale brown colour, more 
or less intense, according to the position of the animal. The 
branchize, when dilated with fluid, are rounded. Length 2, 
rarely 3 inches. 
This species is found on most of our rocky coasts ; it is far 
from being uncommon in the Frith of Forth, Bigbury Bay, 
Torbay, Plymouth Sound, Sandgate in Kent, and in Bantry 
Bay, Ireland. 
FAMILY III. TRITONIAD. 
Branchie \aterali-dorsales, ramose. Anus postico-lateralis, 
dexter. Pallium aliguantulum dilatatum. Sexuum Organa 
antico-lateralia dextra. Tentacula 2 dorsalia, retractilia. Os 
mandibulis duabus corneis armatum. 
Branchiz branched, placed on the sides of the back longi- 
tudinally. Anus on the right side posteriorly. Mantle slightly 
dilated. Sexual organs on the right side anteriorly. Tenta- 
cula two, dorsal one retractile. Mouth armed with two horny 
mandibles. 
Synopsis Generum. 
Branchie plurime, sessiles. Corpus posticé 
angustius. Tentacula ramosa.......... 8. TRITONIA. 
Branchize decem, pedunculate. Corpus pos- 
ticé acuminatum. Tentacula simplicia .. 9. Iputia. 
