DESCRIPTIONS OF GENERA AND SPECIES 567 



they might be natives of either Hayti or New Zealand. But Dr. Michaelsen points 

 out that no true Benhamia has, as yet, been found in New Zealand, whereas in the 

 Neotropical Eegion we have Trigaster lankesteri and the more recently described 

 B. mexicana. 



(la) Benhamia itoliensis, Michaelsen. 



B. itoliensis, Michaelsen, loc. cit., ix, a, 1892, p. 3. 



Definition. Length, 380 mot. ; breadth, I'^mm.; number of segments, 214. Clitellum, 

 XIF-XXII. Setae strictly paired. Dorsal pores commence VfVI. Calciferous glands 

 in XF, XVI, XVII. Last heart in XII. Typhlosole consisting of three or five folds. 

 Penial setae of a peculiar form, broad at insertion, and suddenly narrowed at free 

 extremity, without sculpturing. Spermathecae with numerous diverticula imbedded in 

 its walls. Hab. — Itoli, S. W. Victoria Nyanza. 

 For this species see also Michaelsen (16). 



(J3) Benhamia af&nis, Michaelsen. 



B. affinis, Michaelsen, loc. cit., vii, 1890, p. 9. 



Definition. Length, 32 mm.; breadth, 1 mm.; number of segments, 140. No pigment in the 

 shin. Clitellum, XIV— XXI (XIII and XXII slightly invaded by glandular tissue). 

 Prostomium with a prolongation on to buccal segment. Setae strictly paired. Dorsal 

 pores absent (?). Penial setae present (?). Spermathecae as in B. stuhlmanni. Genital 

 papillae upon the border-lines of segments VIII/IX, IX/X. Hab.- — Quilimane, Bast 

 Africa. 



This species is one of the smallest of earthworms ; it is chiefly to be distinguished 

 from B. stuhlmanni by its size and by the existence of the median papillae upon the 

 intersegmental furrows viii/ix, ix/x. I am not quite clear from Mtchaelsen's account 

 whether penial setae are present or not ; I assume, however, as nothing is definitely 

 said to the contrary, that they are present. 



(14) Benhamia buttneri, Michaelsen. 



B. Biittneri, Michaelsen, Arch. f. Nat., 1892, p. 259. 



Definition. Length, 70 mm.; breadth, 4^ mm.; number of segments, 175. Prostomium 

 sends back a triangular process to nearly middle of buccal segment. Clitellum, XII~XXI, 

 saddle-shaped. Dorsal pores commence XJ/XII. Spermathecae with a minute wart-like 



