Fig. 
MUSEUM OF COMPARATIVE ZOÓLOGY. 255 
EXPLANATION OF FIGURES. 
[Plates I. and IT, were drawn by Mr. J, H. Emerton, the others by the author.) 
PLATE I. 
Colossendeis colossea, from one of the smaller specimens, natural size, from 
the dorsal side. 
Colossendeis macerrima, natural size, from the dorsal side. 
PLATE II. 
Sceeorhynchus armatus, natural size, from the dorsal side. 
The same ; lateral view, with the legs omitted. 
PLATE III. 
Colossendeis colossea, palpus. 
The same ; accessory leg. 
The same ; terminal joints of leg. 
Colossendeis angusta ; terminal joints of leg. 
Colossendeis macerrima ; palpus. 
The same ; accessory leg. 
The same ; terminal joints of leg. 
The same; spines from accessory legs (the serrations are too fine to be in- 
dicated). 
Colossendeis angusta ; spines from accessory legs. 
Nymphon pallenoides ; terminal joints of leg. 
PLATE IV. 
Pallenopsis forficifer ; dorsal view of body. 
The same ; terminal joints of leg. 
The same ; lateral view of anterior part of body. 
The same ; chela of ** antenna." 
Pallenopsis longirostris ; terminal joints of leg. 
The same; characteristic spines from ambulatory legs. 
The same ; chela of “antenna.” 
The same ; cutting edge of chela. 
