40 



BLOOMER : ANATOMY OF CERATISOLEN AND SOLECITRTUS . 



Reference Letters. 



A. 



A. A. 



A. D. B. 



A.L. 

 C.C. 



Cav. 



CD. 



C. D. R. 



C. S. 



C. St. 



Con. T. 



D. D. 



Ep. B. 



Ep. C. 



Ep. Col. 



E. P. 



Ep. W. 



Ex. S. 



Ex. S'. 



F. 

 F. A. 



F. In. 

 H. 



Anu3. 



Anterior adductor muscle. 

 Ridge separating the an- 

 terior from the other 

 portion of the stomach. 

 Anterior or upi">er Up. 

 Caecum of crystalline style. 

 Cavity receiving the small 



bile duct. 

 Central diA-ision of the 



stomach. 

 Ridge bordering the central 



division of the stomach. 

 Crystalline style. 

 Cardiac portion of stomach. 

 Connective tissue. 

 Dorso-central division of the 



stomach. 

 Break in the curious 

 growth of epithelium, 

 probably a duct. 

 Ciliated epithelium. 

 Columnar epithelium. 

 Elevator pedis muscle. 

 Curious growth of epithe- 

 lium. 

 Proximal portion of the 

 exhalent siphonal cham- 

 ber. 

 Free portion of the exhalent 



siphonal chamber. 

 Foot. 



Tentacular fringe repre- 

 senting the fourth aper- 

 ture. 

 Folded portion of the intes- 

 tine. 

 Point where the dorsal 

 integument is connected 

 with the teeth of the 

 shell. 



In. 

 In. R. 



In. S. 



In. S\ 



I'.R.A. P 



P. R. P 



St. 



P. St. R 



T. P. 



R. 

 R. 



St. 

 M. 



Til. 

 V. 



Intestine. 



Returning intestine. 



Proximal p ortion 

 of the inhalent 

 siphonal chamber. 



Free portion of the 

 inhalent siphonal 

 chamber. 



Liver. 



Mouth. 



Muscular papilla. 



Oesophagus. 



Posterior adductor 

 muscle. 



Posterior or lower lip. 

 Retractor pedis an- 

 terior muscle. 



Retractor jicdis pos- 

 terior muscle. 



Posterior division of 

 the stomach. 



Ridge running along 

 part of dorsal sur- 

 face of the pos- 

 terior division of 

 the stomach. 

 Rectum. 



Ridge dividing the 

 inhalent from the 

 exhalent chaml)er 

 of the proximal 

 portion of ' the 



Stomach. ' 



Transverse pedal 



muscles. 

 Tji^hlosole. 

 Ventricle. 



EXPLANATION OF PLATE II. 



Fio. 1. Ccrafisnlen ler/nmen, L. View from the right side, showing alimentary 



canal, &c. x H. 

 Fig. 2. C e rati sol fn hgumen.lj. Longitudinal section of the stomach, showing 



internal structure of the left side, x 1 },. 

 Fio. 3. CeratisnUn hijnmen, L. Longitudinal section of the stomach, showing 



internal structure on the right side. 

 x\\. 

 Fio. 4. Snlenirtns striijilldtus^lj. View fi-om the right side, showing aliment- 



ar}" canal, x 'I. 

 Fio. 5. Solerurtus f!tr)(jillnf)is^ L. Longitudinal section of the stomach, show- 

 ing internal structure of the left side. 

 X 2. 

 Fig. 6. Sohciirtus strigillatus,!,. Longitudinal section of the stomach, showing 



internal structure of the right side. 

 X 2. 

 Fig. 7. — Solecurtus candidus. Transverse section through the caecum of 



the crystalline style and intestine of 

 Solecurtus candidus, showing the rela- 

 tion of one to the other, x 16. 



