Genus III. 



OS in medio ; ANUS in Bafi, margini pro^imrs. — OmhrU 

 * Gefneri ; Aldrov ; Plotii ; Lifteri. Vid* Sloane //. 

 Jamaie. Fot, II, T. 242. f. 6. 7. 2. 9. &C. 



Genus IV. 



OS extra medium ; ANUS in Bafi , margini proximus» vid„ 

 Plot. T. 2.f. 14. j. z.f. i2. Sloane/^/.jCi. 4. r. Pe~ 

 tiv. &c. 



Genus V. 



OS extra medium ; ANUS in ipfo Margine. jghtidam gak* 



ati i Cordati &C. 



Genus VI. 



OS in medio ; ANUS in fuperiori Tefta? parte Margini pro« 

 ximus. Placentifarmis Arachnoidea. 



Genus VII. 



OS extra medium ; ANUS in fuperiori parte Margini proxi- 

 mus. Sciiia banajfcatl. T. IV. f. III. Haima zp.Rumpb. 

 T, XIV. n. 1. &c. 



X* , Ge- 



