STUDIES ON EARTHWORMS. 105 



Two new species are described, Allolobophora longa and 

 A. hispanica. 



Rosa (' Bull. Mus. ZooL, &c./ Torino, vol. i) has added a 

 new species, A. eel tic a, to his previously described forms. 



EXPLANATION OF PLATES VIII & IX, 

 Illustrating Mr. Benhara's " Studies on Earthworms." 



Microchseta Beddardi, 



Fig. 1. — The anterior extremity of the ■worm, showing three somites from 

 above, (x H.) 



Fig. 2. — The three anterior somites from the side. ( X 1^.) a, a. The second 

 and third uephridiopores on the intersegmental grooves, b. Tlie first nephri- 

 diopore, situated on a slight promiueuce in somite i. c. The lateral setae. 

 d. The ventral setae. 



Fig. 3. — Four somites of the clitellum from below, (x 2.) a. The 

 nephridiopores. b. The spermathecal pores, c. The lateral setse. d. The 

 ventral setse. e. The pores of the oviducts. 



Fig. 4. — One of the lateral setae from a preclitellar somite. Nat. size, 

 0-39 mm. 



Fig. 5. — One of the ventral setae from somite xix. Nat. size, 0'715 mm. 



Fig. 6. — A spermatheca. 



Fig. 7. — Two somites of another specimen, showing the asymmetrical dis- 

 position of the spermathecae. 



Fig. 8. — A portion of the intestine, with the intestinal glands. 



Fig. 9. — A portion of the intestine, with the intestinal glands, of M. 

 Kappi. 



Fig. 10. — A portion of one of a scries of transverse sections of M. Bed- 

 dardi, showing the relative positions of tiie ovary and its duct : one on each 

 side of the septum xii — xiii. a. Portion of the funnel of the oviduct, h. 

 Blood-vessel in septum, f. Ccelomic epithelial cells, forming the ovary. 

 0. Ova amongst these cells, s. Septum. 



Urobenus brasiliensis. 

 Fig. 11. — The anterior extremity of the worm (nat. size). «. Prostomium 

 Fig. 12. — Ventral view of the clitellum and neighbouring somites, (x 2.) 



