404 Dr. W. T. Caiman on the 



number o£ these is difficult to ascertain and the arrangement 

 is not quite regular, but at least ten appendages can be 

 counted on one side, the most anterior attached close to the 

 point of origin of the mantle-fold. 



The mouth-parts and the first pair of cirri have been 

 removed. The second cirrus is present on the right side ; it 

 has the rami subequal in length, each with sixteen segments. 

 The fourth cirrus has, on the middle segments, five pairs of 

 spines, and the posterior setse are shorter than the segments. 

 The posterior cirri and the caudal appendages are wanting. 



Measurements of Holotyjie. — 



mm. 



Length of capitulum (approx.) 14 



Breadth „ „ 6'o 



Lentrth of scutum 12 



Breadth ,, 6 



Length of tergum (apex to scuto-carinal angle) .... 7 - 25 



Length of carina 9"5 



Width „ (near apex) - 8 



Width ,, (at base, approx.) 1 '2 



Fig. 2. 



Outlines of scuta from two paratopes of Meyalasma (Giyptelasma) carina- 

 tum (Hoek). The larger from a specimen of capitular length 

 8"5 mm., the smaller from one measuring 6 - 5 mm. 



Variation. — The paratopes, which are all much smaller 

 than the holotype, differ from it more or less in the outline of 

 the scutum (fig. 2). The basal margin is straight or even 

 slightly concave, and its junction with the occludent margin 

 at the umbo is marked by a distinct angle ; the angle formed 



