166 Transactions.— Zoology. 
CanTHaRIpus TENEBROSUS (?). I am very doubtful as to the correct 
determination of this shell, for although it is bluish black, transversely 
suleated, the sulci whitish, and coarser than those of C. huttonii, in shape it 
is shortly conical, and as broad or broader than high, and when young is 
perforated. The largest specimen that I have seen measured °3 inch 
both in height and in breadth, but usually the height is -2, and the breadth 
23. Itis not uncommon on seaweed in Lyttelton Harbour. Perhaps it 
may be a variety of C. pupillus. 
Animal. Foot blue black, concentrically speckled or striped with 
yellowish white. Proboscis blue black, narrowly bordered with dusky white 
or yellow. Eye peduncles short. Tentacles purple, with a dark line down the 
middle. Filaments purplish, three on each side. 
Dentition like C. huttonii, but the central tooth has the median lobe 
behind well developed. (Pl. VIL., fig. t.) 
Doris WeLLinctonensts. Dentition, The radula is folded longitudinally 
along the central line, the two halves being in apposition, and has about 
thirty-four transverse rows of teeth. The teeth are about 65-1-65. The 
central tooth is small and blunt; the laterals have a long, narrow, oblique 
base, turned over and bearing a narrow, acute, cutting point. They 
increase in size from the centre to about the thirtieth longitudinal row, and 
then decrease outwards. The cutting points are much worn in the anterior 
rows. (Plate VI., fig. Gc.) 
Mours puicata, sp. nov. (Pl. VI., fig. 1.) Head, neck, and body 
white; branchie in close transverse rows on the back, dark brown, each 
margined with white. Body not tapering behind. Margin of foot fringed 
and crumpled, except near the head, where it is simple; it is divided m 
front, but not produced. On the side, below the branchie, several rows of 
’ small white papille (?) arranged in festoons. Tentacles distant, subulate, 
tapering, projecting outward, white. No eyes. Oral tentacles shorter, 
_thickened at the base, tapering, projecting laterally, and curved backward ; 
white. Length about three quarters of an inch. 
Found on the roots of D’ Urvillea utilis, cast upon the beach at Sumnet 
Dentition, 0-1-0. About 17 or 18 teeth on the radula, in a single 
series. Each tooth crescent shaped, with a pointed tooth in the centre, 
and six smaller denticles on each side (Pl. VL., fig. r.a.) Jaws two, the 
apices acute and denticulated, the posterior portion flattened. (Fl. VL, 
fig. F. b.) 
Hours corret. The teeth of this species resemble those of 2. plicaté, 
they have a central tooth with six denticles on each side. There are 18 or 
19 on the radula. Jaws two, the apices denticulated ; the posterior portio? 
reflexed. (Pl. VL, fig. . a.nd.) This species should I think be put int 
