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In the present work, on the otker hånd, this name is used for a smaller group which is
well defined systematically, a group that in recent Works lias appeared imder quite different
names. The following facts may probably show that this change of name is well grounded.
The first author to denominate and describe scientifically a species belonging to the
sub-family Cypridininae — thus at the same time the first species belonging to Cypridiniformes,
cf. p. 165 above — was H. .Mu.ni: Edwards. In a work that this author wrote in collaboration
with G. P. Deshayes, published in 1838, there is mentioned cursorily on p. 178 an O s t r a c o d
which difîered so greatly from all the other forms of this group that were known at this time
— the genera Cypris and Cythere — that it seemed necessary to the former author to present
it as a representative of a new genus „sous le nom de Cypri di nes“. The
„description détaillée“ of this form that is promised in this work is to be fourni in MlLXE
EDWARDS’s work „H istoire naturelle des Crustacé s“, vol. III, 1840, p. 410.
Unfortunately this description is anything but „détaillée“; on the contrary it is very incomplete;
at any rate it does not permit of a certain identification of the species.
Is it possible to identify this species of Miiae Edwards’ — Cypridina Reynaudi —
generically, or, to express it perhaps in a better way, to which species or group of species
now known is this species most closely related?
In other words which forms ought now to have the name Cypridina?
G. W. MÜLLER, 1912, p. 52, includes this species under the heading:
„Cypridini-darum genera dubia et species dubia e“, thus indicating that it is
un-identifiable both as a species and as a genus. — This may perhaps, however, be a rather
prématuré step.
W. LILLJEBORG writes, 1876, p. 4: „Genom Professor S. LovÉxs godhet har jag blifvit i
tillfälle att taga kännedom om en i Indiska Oceanen tagen och för sin förmåga att lvsa i mörkret
särskildt anmärkt Cypridinid — utan tvifvel lefvande i ytan af hafvet — som sannolikt är af
samma art som Milne Edwards’ Cypridina Reynaudi, och som således torde kunna betraktas
som typ för det af samme författare uppställda släktet Cypridina.“* This statement of
Lilljeborg’s has up to now been neglected by writers on this subject presumably on account
of its being written in Swedish.**
LILLJEBORG does not give any figure or detailed description of the specimens of this
form investigated by him. Merely from a number of statements in the text there can, however, be
very little doubt that they belonged to the group of species that later on, in 1890, was
distinguish-ed by G. W. MÜLLER as a new genus under the name Pyrocypris. I have also been able to
verify this assumption by an examination of Lilljeborg’s original préparations.
Whether \Y. Lilljeborg’s identification of the species is correct is a question which
may be quite impossible to decide. On the other hand it is very likely that Cypridina Reynaudi
* Translation: „Owing lo Professor S. Lovén’s kindness I have had the opportunity of becoming
acquainted with a Cypridinid caught in the Indian Ocean and specially notable because of its power of shining
in the dark. It undoubtedly lives near the surface of the sea and is probably of the same species as Milne Edwards’
Cypridina Reynaudi and thus may bo looked upon as the type of the genus Cypridina which was cstablished by the
same author.“
** This find was also mentioned by W. Lilljedorg, 1853, p. 1"0.
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