372 TAOR SKOGSI'.ElUi 



I : II : 111 : IV : V : VI : VII : VIII : IX - approximately 41 : i) : 5 : 4 : 4 : 4 : 4 : 4 : 3, 



i. e. the first joint is somewhat longer than the total length of all the other joints; the second 

 joint is about as long as or somewhat shorter than the total length of the third and fourth joints. 

 The first joint has ventero-distally a very short, almost spine-like, bare bristle. The bristles 

 on the second and the third, the second to the fourth or even the second to the fifth joints are 

 all of the same type and length, being about as long as the first to the third proximal joints, 

 and rather powerful, pointed, bare or fm-nished with short spines. Tlie bristles on the other 

 joints are, with the exception of a few of the bristles on the end joint, long and powerful natatory 

 bristles, most of them of about the same size, with ratlier long and wide natatory hairs klong 

 the greater part of their length, without any spines, not hyafine distally nor having any structure 

 there indicating a sensory function. The end joint has more than four bristles, of which some 

 of the dorsal-medial ones are comparatively sliort. Sometimes basal spines are developed, 

 sometimes they are not present; the end joint never seems to be furnished with any of these. 

 The second to the eighth joints are provided distally, both on the lateral and the medial sides, 

 with a close series of short, often rather fine, hairs, those situated on the medial side being often 

 somewhat longer; sometimes some transverse rows of short, fine hairs can also be observed 

 on the distal part of the first joint. The endopodite is always small and weak, more 

 or less distinctly two-jointed. The first joint is short and wide; the boundary between it and 

 the protopodite is often difficult to determine; it is furnished witli some short bristles. The 

 second joint is somewhat longer; its equipment (jf bristles varies; it always lias a single bare 

 (sensory?) bristle distally. 



Male: — The protopodite is considerably more powerful than that of the female; 

 as an example it may be mentioned that in some males of Ph. (Ph.) globosa with shells about 

 2,6 — 2,7 mm. long this joint was about 1,1 mm. long, while in some females of the same species 

 with the same length of shell it was only about 0,8 — 0,9 mm. The e x o p o d i t e is somewhat 

 longer than the protopodite; the proportion between it and this joint is about the same as in 

 the female. The third joint or sometimes the second and tliird joints are rather considerably 

 lengthened. The first joint is without bristles (always?). The bristle on the second joint is 

 comparatively short, being about as long as the first joint, pointed, bare or furnished with short 

 spines. The bristles on the other joints, with the exception of a few on the end joint, are long 

 natatory bristles. The endopodite is developed as a powerful organ for seizing the female. 

 It has three joints, the two distal ones are very much lengthened, the end joint *iay be folded 

 in against the preceding joint. The first joint is rather slightly lengthened and has about the 

 same equipment of bristles as in the female. The second joint has some bristles ventraUy at 

 the middle. The end joint has one bristle near the proximal boundary and distally it has two 

 very short and somewhat sunken bristles situated close to each other. In other respects this 

 limb agrees with that of the female. 



Mandible: — This shows considerable sexual dimorphism. 



Female: — This is rather long and very powerful. The e n d o p d d i t c is ratiier 

 decidedly flattened at the sides, its second joint is onl\' slightly narrowed distally. The pro- 



