54 
be the same, has to take a new name. This may suitably become 
Åphelodoris berghi. 
Fam. Aeolidiidae. 
Cuthona zelandica n. sp. 
(PI. I, fig. 35; text-fig. 14.) 
Body very siender, tapering backwards, foot narrow, with rounded 
anterior corners and thin margins. Rhinophores smooth, equalling 
the tentacles in length. Dorsal papillae elongate, linear, a few 
with bifid tops, set in about 15 transverse rows, 
the foremost 5 rows a little separated from the 
sequent ones; the largest rows, 5 and 6, con- 
taining each 9—10 papillae on each side. Genital 
orifice beneath the 4th row of papillae; anus close 
behind the genital pore. Glans penis conical, 
without any armature. Colour of the papillae (in 
spirit) pale brown, tips whitish; colour of foot and 
head whitish. 
Jaws with one row of minute denticles at the 
masticatory margin. Radula with 60 series of 
arched teeth (text-fig. 14) with a strong but not 
much prominent central cusp and 6 smaller dent¬ 
icles on each side decreasing in size towards 
the base, the innermost denticle often very sien¬ 
der and shorter than its neighbour. Basal proces- 
ses lodged in an articulatory hole on the under 
side of each preceding tooth. Breadth of radula 
0.12 mm, length of teeth 0.12 mm. 
Dimensions: Length of animal 15, breadth 4, br. of foot in 
front about 2 mm. — Locality: Auckland Island: 41 (Masked Is¬ 
land), 1 sp. 
This species is a true Cuthona, differing, however, from the 
mass of congeneric species in the unusual length of its radula, a 
feature that it shares with the British C} stipata Alder & Han¬ 
cock. The genus lacks further representatives in N. Zealand and 
even in Australia. 
Fig. 14. Atoolhfrom 
the radula of 
Cuthona zelandica 
n. sp., seen from 
above and from the 
side. X 440. 
