408 TAdE SKOdSBEIKJ 



pi. LI. fig. G. show only two of these bristles. These bristles vary both with regard to length 

 and equipment; differences may be observed, not only between one individual and another, 

 but also between the right and left antennae of the same individual. Sometimes it is the distal 

 one, sometimes the proximal one and sometimes the middle one that is longest; sometimes one 

 or two of them have an irregular wreath of long, stif? secondary bristles at the middle and short 

 hairs distally. while the two or one that remain have short hairs; sometimes all three have 

 only short hairs. The distal l)ristle of this joint is about as long as the joint or somewhat 

 longer; it is finely rounded distally. On one antenna of one individual there was observed, 

 proximally on this bristle, a protuberance of about the same type as G. W. Muller observed 

 on Ph. levis (1894. pi. 3, fig. 31). 



Mandible (fig. 11): — This is very like that of Ph. (Ph.) globosa. P r o t o p o d i t e: 

 The basale has eight or nine bristles ventrally, of about the same length as in the species just 

 mentioned. Dorsally this joint has, besides the two distal bristles, five (sometimes four) bristles 

 on the distal half. As in Ph. (Ph.) globosa the shorter distal bristle is about as long as the 

 anterior side of the first endopodite joint, the longer one is about twice as long. The remaining 

 five are subequal and about as long as the shorter distal bristle. In most cases all these bristles 

 of this joint have a wreath of long, stiff secondary bristles at the middle and exceedingly fine 

 hairs distallv; sometimes, however, there may be no wreath on some of them. E n d o p o- 

 dite: The second joint differs from Ph. (Ph.) globosa by having five, sometimes even six, 

 bristles in the anterior-proximal group. 



Maxilla: — This is very like that oi Ph. ( Ph.) globosa. We may note: P r o t o- 

 podite: On the boundary between the protopodite and the endopodite there are on the 

 anterior edge of the palp two bristles with short hairs, usually subequa! and varying somewhat 

 in length, sometimes only about half as long as the first endopodite joint, sometimes about as 

 long as the corresponding bristle in PJi. (Ph.) globosa. On one specimen three of these 

 bristles were observed in this place on one maxilla. Kxopodite: The equipment 

 of the three bristles is rather variable; the short bristle often seems to be without 

 long secondary bristles. Endopodite: End joint: This has usually, as in Ph. (Ph.) 

 globosa, four, sometimes five, a-bristles; on one specimen three b-bristles were observed, 

 two of wliich were powerful; four or five, usually four c-bristles; the three d-bristles are 

 sometimes subequal, in most cases, however, the relation between their lengths is the same 

 as in Ph. (Ph.) globosa. 



Fifth limli: — This is quite like this appendage in Ph. (Ph.) globosa. 



Sixth M 111 h: — This is very like that of Ph. (Ph.) globosa; we may note that the 

 second joint of the exopudite has 28 — 33 bristles. 



S e v e n t h I i in b (fig. 13): — This has about the same n^lative length as the corre- 

 sponding appendage in Ph. (Ph.) globosa. The cleaning bristles are relatively few, usually ten, 

 sometimes eleven, of moderate, somewhat varying length. ITsually six of these are situated 

 dorsally, three close together distally and three scattered somewhat proximally of the former. 

 Four, sometimes five, are situated ventrally, two chjse together distally and two or three somewhat 

 proximally of the former. Ecpiipment of the cK^aning bristles: Three to six bells cut oft'transversally 



