10 



153. Craspedostoma glabnim Lm. 



154. Autodetus calyptratus Schrenk. 



155. Holopea mix Lm. 



156. transversa Lm. 



157. perforata Lm. 



158. nitidissima Lm. 



159. applanata Lm. 



160. Elasmonema obesum Lm (formerly Callonema, but this is preoccu- 



pied and Fischer changed it.). 



161. scalariforme Lm. 



162. Holopella teres Lm. 



163. regularis Lm. 



164. minuta Lm 



165. Macrochiliiia cancellata Lm. 



166. bulimina Lm. 



167. fenestrata Lm. 



168. Subulites ventricosus Hall. 



169. var. curviis Lm. 



170. attenuatus Lm. 



171. Euchrysalis lineolata Lm. 



172. Onychochilus physa Lm. 



173. reticulatum Lm. 



174. coclileatum Lm. 



Some more new forms have been received since the work on the Silurian Ga- 

 stropoda of Gotland was published and the total of the species may thus 

 now amount to ISO. 



/ Lamellibraucliiata. 



1. Aviculopecten Danbyi Mac Coy. 



2. reticulatus His. 



3. Pterinea retroflexa Wahleuberg. 



4. ampliata Phillips. 



5. baltica Ferd. Roem. 

 6 — 10. novae species. 



11. Cypricardinia mira Barr. 



12—14. n. sp. 



15 — 16. Cardiola, two iudeterm. sp. 



17. Ambonychia striata Sow. 



18. punctata Lm in Fragmenta Silurica. 

 19—20. n. sp. 



21. Mytilarca oviformis Conrad. 

 22—23. n. sp. 



24. Cyrtodonta sinuata Murch. & Verneuil. 



25. Ctenodonta sulcata His. 



26. pinguis Lm. 



27. crispula Lm. 

 28—31. n. sp. 



32. Ptychodesma Gotlandicum His. 

 33—34." Orthonota sp. 



