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posterior bristle. Of the two anterior ones, which are situated somewhat distally of tlie middle
of the joint, the anterior one is often somewhat longer than tlie other and about as long as the
total length of the third and fourth joints. The posterior bristle on this joint is in most cases
about as long as the shorter of the two anterior ones. The fourth joint has two anterior and four
posterior bristles. The latter are of about the same relative length as in Ph. ( Ph.) globosa ;
the two anterior ones are in most cases about as long as or somewhat longer than the two anterior
bristles on the preceding joint. The bristle on the fifth joint and the a-bristle on the end joint
are subequal, their length being about the same as the total length of the fourth and fifth or
the fourth to the sixth joints. The length of the bristles discussed so far varies somewhat,
though only slightly; their equipment is usuallv two to four irregulär wreaths of long, sti ff
secondary bristles. The sensory bristles on the end joint (fig. 5) have the following equipment:
the b-bristle has two proximal and three distal sensorial filaments; the c-bristles have seven
proximal and four distal sensorial filaments; the f- and g-bristles have six proximal and four
distal sensorial filaments. Pilosity: The second to the fifth joints have rather abundant
transverse groups of short, sti ff hairs.
Second antenna: — Exopodite: This is very like that of Ph. (Ph.) globosa.
The proportion between the length of the first joint and the length of all the succeeding joints
is about the same as in Ph. (Ph.) Lilljeborgi. The bristles on the second to the fourth joints
are about as long as the two to three proximal joints, bare, and finish distally as two short, fine
points. In females with large eggs in the brood chamber the long natatory bristles are broken
oiî in the same way as in Ph. (Ph.) globosa. There are no basal spines, but a nurnbèr of hairs
in the distal rows of hairs on the second to the eighth joints are considerably strengthened and
are like spines at the place where in other species the basal spine is to be found.
Endo-p o d i t e (fig. 6): The first joint is very similar to that of Ph. (Ph.) globosa. The second joint
is rather short; ventrally it has only one bristle, situated somewhat proximally of the middle
of the joint. This bristle has numerous wreaths of long, stifî secondary bristles at the middle
and short hairs distally and is exceedingly long, almost as long as the protopodite of this antenna.
In one specimen (the type-specimen) there was observée! on the antenna of one side, somewhat
distally of this bristle, an additional bristle of about the same length and type as the bristles
on the first joint. The distal bristle of the second joint is about as long as or somewhat shorter
than this joint; it is rather pointed distally.
Mandible (fig. 8): — Protopo dite: The basale has ventrally ten to twelve,
usually ten, bristles of different lengths, some moderately long, some, especially arnong the distal
ones, rather long. Dorsally this joint has, apart from the two distal bristles, only one bristle,
situated somewhat in front of the middle of the joint; the latter bristle is about as long as this
joint, the two distal bristles differ somewhat in length, the longest being about as long as the
dorsal side of this joint or even somewhat longer; these bristles have one or a few wreaths
of long, stifî bristles at the middle and fine, short hairs distally; sometimes the proximo-dorsal
bristle has no wreath. The two bristles of the exopodite are of about the same type
and length as the two distal bristles on the second protopodite joint, sometimes they are
rather longer, sometimes a little shorter. E n d o p o d i t e (fig. U): The four ventral bristles
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