290 Dr. B. Rosa on new Earthworms. 



Megascolex armatus (Bedd.). 

 Hah. Christmas Island. 



Microscolex dubius (Fletch.). 



Hah. Colon, near Montevideo. Coll. by Mr. Oldfield 

 Thomas. 



Allolobophora caliginosa (Sav.). 



Hah. Colon, near Montevideo. Coll. by Mr. Oldfield 

 Thomas. 



Allolobophora cyanea (Sav.), subsp. profuga, Rosa. 



Hah. Colon, near Montevideo. Coll. by Mr. Oldfield 

 Thomas. 



Allolobophora putris?, Hoffm. 

 Hob. Behring Island. 



EXPLANATION OF PLATE IX. 



Anteus potarensis, sp. n. 



Fig. 1 a. A copulatoiy seta (ventral seta of the clitellum), enlarged. 



Fig. 1 b. A normal seta (dorsal seta of the clitellum), enlarged. 



Fig. 2. A calciferous gland (in somite xiy.). 



Fig. 3. A spermatheca, 



Pontodrilus ephippiger, sp. n. 

 Fig. 4. Prostate. 

 Fig. 5. Spermatheca. 



Pericheeta /urn's, sp. n. 



Fig. 6. Sperm-sacs {vs.), sperm-reservoirs (cs.), and diverticulum (cs.div.). 

 Fig. 7. Spermatheca. 



Perichesta recta, sp. n. 



Fig. 8. Copulatory papilla; behind the clitellum. 

 Fig. 9. Prostate. 

 Fig. 10. Spermatheca. 



Pericheeta pura, sp. n. 



Fig. 11 a. Sperm-sacs in somite xii. (outer side). 

 Fig. 11 b. One sperm-sac in somite xii. (inner side). 

 Fig. 12. Prostate. 



Fig. 13 a. Right spermatheca (dorsal view). 

 Fig. 13 6. Ditto (ventral view). 



Pericheeta Belli, sp. u. 



Fig. 14. Prostate. 

 Fig. 15. Spermatheca. 



Pericheeta zonopora, sp. n. 

 Fig. 16. Prostate. 



