228 Transact ions. —Zoology. 



short (fig. 11), I'ounded at the end, and considerably exceeded 

 by the caudal lamellie. 



Oviferous tubes stout, more than half as long as the whole 

 body, very distinctly annulated. The length is to the breadth 

 in the ratio of 6 to 1. The number of rows of eggs or of an- 

 nulations is treated as a matter of specific importance by some 

 authors. In two specimens (taken at random) of this species 

 the aunulations ai'e respectively 23 and 38. 



Length of body, 4mm. ; length to end of oviferous tubes,. 

 5tom. ; breadth of cephalothorax, 3mm. 



The first antcnnce (fig. 3) have the 1st joint plate-like, and 

 presenting from above the appearance of a lateral continuation 

 of the frontal lamella, but fringed on the inner (front) margin 

 with a row of setae ; 2nd joint very small, subquadrate, also 

 flattened, and with about 10 setoe arranged around its ex- 

 tremity. 



The second antenna} (fig. 4) are very stout ; the basal joint 

 bears at its extremity a short flat obtuse lobe, striated in a 

 comb-like manner. I cannot suggest the function of this 

 appendage. The 2nd joint is in the form of a blunt hook, 

 and bears on its inner margin a single small seta. 



The mouth-sucl'cr (fig. 5) is short, thick, and blunt. 



The first foot-jaics (fig. 6) are slender and weak, more 

 elongated than in L. Imttoni, and bear on the outside of the 

 terminal joint a very small short jointed appendage oi' 

 seta. 



The second foot- jaws (fig. 7) are strong and 2-jointed, as 

 in L. hutioni, and hooked at the end. 



The legs of the first pair (fig. 8j are 1 -branched ; basal 

 joint of branch with a spine on its inner side ; terminal joint 

 with 3 strong claws, and a very short plumose seta at the 

 extremity, and on the inner margin 3 long plumose seta), 

 directed inwards. 



The legs of the second pair (fig. 9) are 2-branclied ; outer 

 branch 3-jointed, and placed as in L. huttoni ;''•' 1st joint 

 extending laterally from the side of the sternum, and bearing 

 a long plumose seta on its inner and a straight short spine 

 on its outer margin ; 2nd joint with a long plumose seta on 

 the inner and two straight spines on the outer margin, which 

 also has a finely-plumose fringe ; 3rd joint with one stout 

 curved spine and one strong straight plumose spine on its 



* In describing this species (Trans., vol. xxii., p. 355), I have said, 

 " Outer branch 2-jointed and in a continuous lino with the basal joint,, 

 stretching transversely across the body of the animal." This " basal 

 joint " is realij- the 1st joint of the outer branch, but its junction with 

 the sternum is not alwavs verv clearlv defined. 



