X 
75 
1 
I 
: Fam. Thyasiridae. 
i 
I 
Thyasira flexuosa (M o n t a g u). 
Auckland Island: 37a, some sps., 1. 4.7. — 42, 1 sp., 1. 4. — 
I 43, I sp., 1. 3. 
Fam. Erycinidae. 
Evycina bifurca (Webster). 
Stewart Island: 36a, 1 small sp. 
I 
Evycina pavva (Deshayes). 
North Island: 16, 1 small sp. — 26, 7 sps., 1. 3.2. — Auck¬ 
land Island: 37a, some sps., 1. 3.4. — In this species the mantie 
is entirely open, without sutures and siphons, the posterior giil is 
small and consists of the descending lamella only, which is directed 
forward. Its edge is fused to the mantie all along, and the upper 
half is coalesced with the direct lamella of the anterior gili. Both 
I gilis were full of fry; the posterior brood-pouch is the Space be- 
tween mantie and the single lamella of the posteror gili, and it 
extends far beyond the gili posteriorly. 
Neolepton antipodum (Filhol). 
North Island: 2, 2 small sps., the largest of a yellowish colour 
with brown fulgurations. — Auckland Island: 40, 2 small sps. — 
43, numerous sps., I. 3. — Campbell Island: 45, 5 sps., 1. 3. 
Neolepton citrinum (Hu tt o n). 
Auckland Island: 37a, 3 sps., 1. 3. 
Neolepton sanguineum (Hutton). 
Stewart Island: 36a, many sps., 1. 3. 
The genus Neolepton was established by Mon te rosa to in 
1875 on Lepton sulcatulum ]eUveys (1859) and some allied spe¬ 
cies as a subgenus of Lepton. It is, however, quite distinet, as will 
be shown by a comparison of the animals of Lepton squamosum 
(Fo rb e s & H a n 1 e y 1853, pi. O, fig. 6) and of the present species. 
Bernard (1897) includes in the synonymy of this genus Lu- 
tetina Munier-Chalmas & Vélain 1876. 
