﻿Plate I. (Crustacea, Plate XC.) 

 Achaeopsis thomsoni (Norman). 



n.s. Dorsal view of a male specimen, natural size, showing the left cheliped 

 and last two ambulatory legs in position ; the right cheliped detached, 

 its fixed finger broken ; the other limbs missing. Parts of the cara- 

 pace magnified, in ventral aspect, are shown in the median line, and a 

 lateral view on the right shows the eye, the fii-st and second antennae, 

 and the rostrum with its strongly curved ventral process. 



PI. The pleon flattened out. 



The remaining figures are from a female specimen. 



m. ? , mx. 1, ? . The mandible and first maxilla, the latter with further 

 magnification. 



mx. 2, ? , luxp. 1, ?. The second maxilla and first maxilliped, uniform with 

 higher magnification of first maxilla. 



mxp. 2, $ , mxp. 3, ? . Second and third maxillipeds, magnified to the same 

 scale as the mandible. 



