Bknham. — Nortli Island Earthworms. 241 



on p. 254, by a slip of the pen, 8/9), about midway between the 

 chsetse a and the hinder border of the segment. 



Internal Anatomy. — The last heart is in the 12th segment. 



The gizzard, in segment 5. There are no oesophageal glands. 



The prostates reach into segment 24 ; the duct is long, 

 narrow, curved in a sigmoid fashion (? due to contraction of the 

 worm), and occupies two segments. 



The spermatheca is an ovoid sac, with a duct of about half 

 its diameter and length. The pyriform diverticulum opens into 

 the duct about half-way along its course. 



hoc— Auckland : Nikau Palm Bush ; Waitakerei {H. Suter) : 

 also " from the sheaths of nikau and Astelia leaves, Auckland " 

 (C. Cooper). 



3. Tokea decipiens, n. sp. 



This name I propose for larger, paler, brown worms with 

 only a single tuberculum pubertatis, of which I have some hall- 

 dozen specimens. 



Dimensions. — 55-75 mm. by 2 mm., with 75-90 segments. 



The chcetal formula is apparently ah < be < cd ; aa = be ; 

 dd=2>ab. I write "apparently," for the body- wall is soft and 

 therefore extensible, and the measurements made on different 

 individuals do not give precisely the same figures. 



The clitellum covers segments (13) 14-17 (18)— that is, in one 

 or two individuals the dorsal surface of part of the 13th and 

 18th segments are glandular. 



The genital fores as in the previous species, but there is only 

 a single tuberculum pubertatis, on the 18th segment ; none of 

 these larger worms present any trace of one on the 14th segment. 



The spermathecal pores, near the hinder margins of segments 

 7/8, behind the chaetae a. 



Internal anatomy as described in loc. cit. 



hoc. — Waitakerei Bush, near Auckland (H. Suter). 



4. Rhododrilus besti, Benham, P.Z.S., 1904 (ii), p. 235. 



The specimen from which this account was written was the 

 sole individual in my possession at the time ; since then I have 

 received half a dozen worms that fit closely with that account. 



Colour. --Mr. Best writes: "Light-coloured worms with 

 reddish band [i.e., clitellum] near head." When preserved the. 

 worms are white and the clitellum is yellow-brown to reddish- 

 brown. 



Dimensions. — They range in size from 110 mm. by 4 mm. 

 to 220 mm. by 5 mm. ; the former with 182, the latter with 226, 

 segments. 



The ch&tal formula is ab = cd < be ; aa = be = \\ab : dd = 

 about 3afe. 



