374 y\r.i-: sk(H,si;i;i;(i 



the shorter of tin- two iniiUlk' claws, the shortest oiu' only a third or a cinartcr of tlic Icniitli of 

 the pri'vious one. Tlio powt'rful claws of llic end joint arc liarc, the weaker bristles of this 

 joint are ofton linely pectinateil. 



Male: — This differs fi'um that of tlu' leiiiale esjieeially liy the reduction of the iiiasti- 

 oatory part,><. It has formerly always been stated in the literaluic that the coxale is entirely 

 without any iMulite. (At any rate I have found no statement that this endite exists, unless the 

 following one by G. O. Sahs, 1865. p. 1(»7 can be conceived to refer to this process: „Pe(luni niandi- 

 bularium j)ars basilaris intus tubereulo modo minimo pilis2 brevibus obsito ut rudimento partis 

 ineisivaemandibularium instriieta." In his work of 1887 (jI. O. SAHsdoes not mention any ditl'erence 

 with reganl to this endite in the males and females of this genus. This statement of G. O. S-Mis' 

 is repeated without any alteration by G. S. Bl^AH'i and A. M. NOUMAN in their work of 18!)G, 

 and it is also found in some other treatises. W. Lilljeborg, 1853, G. W. MOlJ.KK, 1890 and 

 1894 as well as several other writers definitely state that there is no endite on this joint.) On 

 the single male of this genus that I had an opportunity of investigating, the male of Ph. (Ph.) 

 globusa, this process is, however, developed, but it is extremely reduced and probably without 

 any function (see fig. 13 of the species mentioned). The medial bristles on the proximal half 

 of the second protopodite joint are developed to the same number as in the females, but are 

 very weak. Other bristles too show some, though only a very slight, difference from those 

 of the females. 



Maxilla: — Tliis shows strong sexual dimorphism. 



Female: — Protopodite: The basale in rather large and well defined from the first 

 eudopodite joint. The three powerful endites are always immoveably joined to the protopodite; 

 the third of them is rather pointed distally. All the species investigated by me showed a rather 

 close resemblance with regard to the bristles on these processes. (Because of this 1 have not 

 considered it necessary to reproduce them for more than one species. Ph. (Sc.J Appellofi; 

 a detailed description of them is given under the first species. Ph. (Ph.) globosa.) The first endite 

 in the forms investigated by me has ten to twelve distal bristles, the second has six, the third 

 has nine or ten. Proximally on the outside of the third endite there is a single bristle. Dorso- 

 distally on the coxale there is a single bristle with soft, long hairs. On the boundary between 

 the protopodite and the endopodite there are some bristles: one close to the exopodite, one at 

 about the middle of the inside of the palp and one or more on the anterior edge of the palp. 

 This genus seems to be without any epipodial appendage. G. W. MCller writes 

 with regard to this appendage in this genus, 1894, p. 56: ,,bei PhUomedes habe ich an seiner 

 Stelle nur einen flachen, fein behaarten Hautsaum entdecken konnen". In the species investig- 

 ated by me the place at which in the sub-family Cypridinitme the epipodial appendage issues 

 had also a ,, Hautsaum" with fine, .soft hairs situated close together. Exojjodite: This is 

 small and short, almost verruciform and naked and situated on the boundary between the 

 protopodite and the endopodite. Endopodite: First joint: Anteriorly near the distal 

 boundary this joint has, in all the forms investigated by me, one bristle, posteriorly-distally 

 there are on this joint a somewhat greater number (4 — 5 were observed). These bristles 

 are of moderate length and strength, decreasing somewhat in length the more anteriorly 



