PLATE XIV. 



The hearts of the Calmar. 



a. The hollow vein. 

 bb. 

 cc. 



lateral hearts, 

 pulmonary arteries. 



The heart of the Aplysia- 



a. The hollow vein. 

 d. .. branchiae. 



dd. The place of the branchiae. 

 ee. .. pulmonary veins. 

 f. .. middle heart. 

 gg. .. aorta. 



e. The auricle and pulmonary vein. 



f. . . heart. 



g. .. arteries. 



3. 

 4. 



5. 



7. 

 8. 



9. 



Spirula fragilis with its shell. 

 Tapada putris, with its shell. 



The under side of a Patella, the head bent towards the foot 



The foot. 

 .. mouth. 

 .. tentacula. 



anus and orifice of ge- 

 neration. 



a. 

 b. 

 cc. 

 d. 



e. 



ggg- 



hh. 



a. 



The pericardium. 

 . . trunk of the branchial vein. 

 .. circular part of the above 



vein. 

 .. branchiae. 

 . . branchial artery . 



6. A Patella of the species in which the branchial are interrupted. 



a. 

 bb. 

 c. 

 d. 



/■ 



The mouth. 

 .. tentacula. 

 .. fleshy mass. 



nervous collar. 

 .. ovarium. 



gg- 

 h. 



ii. 



qq. 



The intestines. 

 .. branchiae. 

 .. branchial veins. 

 .. oviductus. 



Helix brevipes, with its shell. 



Hjralea australis, with its shell seen on the side of the projecting valve. 

 a. b. c. The projecting points of the flat or ventral valve. 

 d. The dorsal valve. 



ff. .. mantle coming out from the interstice between the valves, close 



to which are the branchiae. 

 /. ill. .. fins. 

 n. .. mouth. • 



Parmacella Olivievi, Cuv. opened. 



a. The mouth. 

 bb. .. great horns. 



c. .. brain. 



d. . . salivary glands. 



e. ff. . . organs of generation. 



g. .. bag for the colouring 



liquid. 



h. .. stomach. 



10. Ca briar ( Sep ia Lol igo ) , 



a. The head. 



b. .. eyes. 



c. .. feet. 



d. .. arms. 



ii. 



The retracting muscles. 



kk. 



. . liver. 



1. 



.. lungs. 



m. 



. , auricle. 



n. 



. . heart. 



0. 



.. intestine. 



z. 



. . mantle turned back . 



e. 

 f- 



g- 



The 



funnel. 



abdomen. 



fins. 



• 



