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Habitat: — Coast of England-: Salcombe. English Channel (t y p e -1 o c
a-lity): one mature female and one larva (coll. G. S. Brady); R. M. S., on slides.
Medi-terranean Se a: Naples: one mature female (eoll. G. W. MÜLLER); on slides, R. M. S.
Asterope Mülleri n. sp. var. longiseta n. var.
Description: — Female: —
Shell: — Length, 1,62—1,66 mm.; length : height about 1,4:1, lenght : breadth
about 1,9 : 1. Seen b o t h from the side and from b e 1 o w (figs. 1 and 2) it is
of quite the same type as the shell of A. Mülleri. Seen from w ithin: Medial bristles:
These also show a great resemblance to those of the type species; it is to be noted, however,
that the rather few bristles in the incisur are scattered and the row of bristles between the
spine-bearing list and the posterior margin of the shell is either only developed along the ventral
half of the spine-bearing list or else — and this seems to be the most common case — it is
represented dorsally by single bristles (cf. fig. 3). The spine-bearing list has about 31—32 hyaline
spines which vary somewhat in size; its bristles are like those of A. Mülleri; two bristles were
very seldom found between a pair of hyaline spines. As in A. Midlen there are no broad pores
between the list and the posterior margin of the shell.
First antenna: — This is very like this limb in A. Mülleri. It is to be
noted: The third and fourtli joints form togetker an almost quadratic joint, only rather
slightly shorter than it is high and somewhat skorter than the total length of the fifth and
sixth joints. The distal boundary of the fourth joint is moderately concave. The longer of the
two postero-distal bristles on the fourth joint is shorter than the total length of the fifth and
sixth joints. The c-bristle has five, the f-bristle has four or five and the g-bristle five or
six sensorial filaments.
Second antenna: — Distally on the inside close to the exopodite the p r o t
o-p o d i t e has a very short bristle. The end joint of the exopodite has four bristles. The
fourth to the ninth, sometimes the third to the ninth, joints of this branch have basal spines.
The endopodite (fig. 4) is very small, almost quite unjointed; its distal bristle is more
than twice, sometimes as much as three times, as long as the stem.
Mandible: — This is very like the corresponding limb in A. Mülleri. We must
note: Pr o topod i te: Coxale: The scythe-shaped process (fig. 5) has six ventral spines,
all with double points, the distal ones rather weak. Sometimes, when the fine points are worn
off on the four distal spines, the latter are only represented by weak, rounded swellings as in
A. Mülleri. Basale: The backward pointing process has four distal bristles, four triaena
bristles and one dwarf bristle. On the triaena bristles from three to five pairs of spines were
observed under the distal pair of spines. The glands of this process emerge on a peg which is
almost as large as in fig. 9 of A. spinifera. The dorsal side of this joint is either smooth or is
furnished with a few groups of short, fine, stilï hairs. E n d o p o d i t e: The second joint lias
one proximal bristle, which is about a third of the length of the main bristle a. The medial
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