CHITONID&. 113 
Tasman’s Bay. (Quoy.) Stewart Island. (F.W.H.) 
Generally rose colour, sometimes greenish spotted with red (Quoy.) 
L. contractus, Reeve, Conch. Ic., f- 78. Shell oblong, pecu- 
lariy contracted at the extremities, especially the anterior; terminal 
valves and lateral areas of the rest concentrically granulated ; granules 
solitary ; central areas very minutely and closely ridged ; ridges curved 
and conspicuous towards the sides, finer towards the middle, and decus- 
sated with oblique striz ; light bay, flamed in the middle with brown ; 
ligament granosely coriaceous, dark brown (Reeve.) 
New Zealand. (Cuming.) 
L. longicymbus, De Blainville ; Sowerby, Conch. Illus., f 67; 
Reeve, Conch. Ic., f. 163; Chenu, f. 2857. Oblong; mantle with very 
minute scales ; valves rounded ; posterior margins straight, or slightly 
concave ; terminal areas with fine radiating moniliform lines ; lateral 
areas with radiating ribs crossed by rather deep, curved, transverse fur- 
rows ; median areas of both terminal and intermediate valves finely 
punctate ; brown variously tinted with green, yellow, or whitish, some- 
times pink on the back when rubbed ; often entirely greenish-brown, 
minutely freckled with yellow ; often brown, with a broad white stripe 
down the back. 
Length, 1-4; breadth, ‘65. 
Very variable both in shape and colour. 
Common under stones. Auckland to Dunedin.  Pitt’s Island. 
Auckland Islands. Campbell Island. Found also in Australia. 
L. circumvallatus, Reeve, Conch. Ic., f 177. Shell oblong, 
ovate, terminal valves and lateral areas of the rest sculptured with con- 
centric ridges ; central aréas very minutely reticulated ; posterior termi- 
nal valve umbonated ; blackish-red, spotted with black ; ligament arena- 
ceous, tesselated (Reeve.) 
Distinguished from C. /ongicymbus by the conspicuous ridge with 
which it is encircled. 
Campbell Island. 
L. empleurus, Hutton, Trans. N.Z. Inst. iv., p. 178. Oblong ; 
margin with very minute scales ; valves rather elevated and flattened on 
each side, sub-carinate ; posterior margins slightly concave, with a small 
central point ; terminal and lateral areas raised above the rest; minutely 
punctate ; median areas minutely punctate, sometimes with a row of 
deep longitudinal pits along the anterior edges of the raised lateral 
areas ; uniform yellowish-pink. 
Length, -75; breadth, -3. 
Founded on two specimens in the Colonial Museum, locality not 
stated. 
L. rudis, Mutton, Trans. N.Z. Lust., w., p. 179. Oblong; margin 
with minute scales ; valves elevated, flattened on the sides, not keeled ; 
apex of anterior valve recurved, with its posterior margin slightly convex 
at the sides, and deeply concave in the centre; posterior margins of 
intermediate valves straight; posterior valve rather small; apex pos- 
