OF MOLLUSCA. 225 



* Front of foot angular. 



1. E. papillosa, t. 195. f. 43, t. 197. f. 6, t. 268. f. 8 ; Forbes f 



Hanley, B.M. t. B.B.B. f. 1. 



2. E. limacina, t. 194. f. 2. 



3. E. Scacchiana, t. 194. f. 5. 



4. E. Cuvieri, t. 195. f. 6 ; Voxj. Bonite, t. 24 /3. 



5. E. ?diversa, t. 196. f. 4. 



6. E. salmonacea, t. 196. f. 5. 



7. E. ?, t. 205. f. 8. 



8. E. Histrix, t. 205. f. 1. 



9. E. Peachii, Alder fy Hanc. Ann. Nat. Hist. i. 190. 



10. E. glauca, t. 272. f. 1. 



** Foot subulate in front. 



11. E. paradoxa, t. 194. f. 7. 



The lingual plate of E. papillosa has a K 121 ._ T eeth of Eolidia 



single pectinated arch ; of E. glauca a double branchiate. 



pectinated arch. — Alder. \»jwwMtoi 



Central tooth of Eolidia branchialis wide, ^\^—~^% 



plate-like, short, adpressed, arcuated back- f/^"^ ~^\\ 



wards, cutting edge equally pectinated (fig. ^ ^ 

 121). 



8. CUTHONA. 



Body depressed. Head much produced at the sides. Tentacles 

 single, linear. Branchiae clavate, in close-set rows. Foot broad, 

 rounded in front. Lingual membrane with a single series of plates, 

 with a large spine and marginal denticles. 



1. C. nana, t. 272. f. 2. 



9. Cavolina. 

 Body rather slender. Tentacles linear, simple. Branchiae linear, 

 generally in rather distant transverse rows. Foot narrow, with the 

 anterior angles rounded. Lingual membrane with a single series of 

 denticulated plates, with the central spine not prominent. Spawn 

 slightly coiled. 



1. C. aurantiaca, Alder fy Hancock. 



* Front of foot produced, subulate. 



2. ?C. ?exigua, Forbes fy Hanley, B.M. t. B.B.B. f. 4. 



3. C. lineata, Alder fy Hanc. Mon. t. 16. 



4. C. elegans, Alder fy Hanc. Mon. t. 17. f. 2, 3, 4. 



5. C. smaragdina, Alder #• Hanc. Mon. t. 17. f. 1. 



6. C. gracilis, Alder §■ Hanc. Ann. Nat. Hist. xiii. 166. 



7. C. peregrina, t. 194. f. 9(?), t. 198. f. 14, t. 205. f. 10. 



8. C. longicornis, t. 195. f. 8. 



9. C. annulata, t. 194. f. 3. 



Q 



