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words in the groups identical witli Cypridina (sensu MüllerI) the c-bristle of the male first
antenna has two filaments with small suctorial organs distally, while in the sub-genus Cypridina
(sensu meo), i. e. Pyrocypris, this bristle has only one such filament. With regard to the latter
character I only wish to point out that, at least in some species, six bristles are to be found
on the endopodite of the second antenna in this sub-genus.
Fifteen species of this sub-genus are known so far. Number of species.
In passing I may make a contribution to the synonymy of a species belonging to this a contribution to the
sub-genus. synonymy of
In G. S. BRADY’s work of 1902 a we find on p. 186 that C. (Cypridina) Chierchiae (G. W.
Müller) was caught in the „Bay of Bengal“ by the „G a 1 a t h e a“ expedition. The specimens
on which this statement is based are preserved in the Zoological Museum of the University of
Copenhagen and have’ been re-examined by me. The following facts are the results of this
investigation :
Firstly the locale stated by G. S. BRADY is a little incorrect. The correct habitat is lat.
6° 22’ N., long. 75° 54’ E., i. e. somewhat S. W. of Cape Comorin in India.
Secondly I discovered that BRADY’s identification is incorrect. The characters in the
„G a 1 a t h e a“ specimens that do not agréé with the information given by G. W. MULLER
for C. (C.) Chierchiae are as follows:
Shell: The anterior part of the ventral margin, behind the rostral incisur, has from
ten to twelve bristles.
Second antenna: The endopodite has six bristles.
Mandible: The longest of the (four) ventral bristles of the first endopodite joint
is rather considerably longer than the others (it is about the same length as in C. (C.)
serrata affirmans, cf. belowT).
The sevent h limb has six distal bristles, three on each side.
All the limbs are without pigmentation except the left first antenna.
(It is, however, not impossible that a number of tliese differences are only apparent,
as G. W. MUller’s description of C. (C.) Chierchiae is very deficient.)
To which species do these specimens belong? — I do not consider it convenient to express
an opinion on this question. In any case the answer would be very uncertain, partly on
account of the very damaged condition of the specimens in question, partly and not least on
account of the deficiencies in most of the descriptions of species belonging to this sub-genus.
Cypridina serrata (G. VV. Müller) var. affirmans n. var.
Description: — Male: —
Shell: — Length, 1,7—1,75 mm. Length : heiglit, about 1,9 to 1. Seen from
the side (fig. 1) it is of about the same shape as that of the type species, but the ventral
margin seems to be somewhat more boldly arched. (The shells investigated by me were all soft
and consequently their shape was somewhat uncertain.) The surface o f the s h e 11
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