438 THE AMERICAN NATURALIST. (VoL. XXXIX. 
Whitish, with tinge of yellow ; ocelli extend along lateral nerves for about 
two fifths the length of esophageal region ; body small 
Z. albida Coe, P. 
2. Pale green; occasionally flesh-colored, pale yellow, or white, especially 
anteriorly ; central stylet short, about half as long as basis, not remark- 
ably stubby ; usually 2 or 3 accessory stylets in each of 2 lateral 
pouches; 1o or 11 proboscidial nerves 
Z. virescens (Verrill) Montgomery, C, S, X. 

A B © D E 
Fic. 2.— Outlines of central stylets and bases. 
A, Paranemertes carnea. 

i E, P. pallida. 
B, P. californica. : F, Carcinonemertes epialti. 
C, P. californica. Stylet only, more highly magnified. G, N: topsis gracili. 
D, P. peregrina, 
2. Dark olive green ; central stylet remarkably stubby, often less than half 
as long as basis which is much serrated on posterior border ; commonly 
5 accessory stylets in each of 2 lateral pouches; 12 proboscidial nerves 
. thalassina Coe, A. 
AMPHIPORUS.! 
1. Body very gelatinous, with an enormous development of the body 
parenchyma. . 
Body short and broad ; ocelli large, 30 or more on each side of the head ; 
cerebral sense organs extremely small, situated in front of brain 
A. gelatinosus Coe, A', 159. 
‘In addition to the forms here included, two species, 4. brunneus and A. 
drepanophoroides, have been described by Griffin from Puget Sound, but their 
agnoses are so incomplete that it is doubtful as to which, if any, of these forms 
they should be referred 
