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/ 2 LAVA Cote ale
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MT Cifedin 4

Bek wand Laafoka, e

From the ANNALS AND MaGazinr oF Natura History,
Ser. 7, Vol. xi., April 1908.

New Generic Names’ for some Entomostraca and Cirripedia.

By Canon A. M. Norman, F.R.S. &e.

In preparing for publication a second edition of the Catalogue
of the Crustacea in my collection and tracing the generic
‘names of the lower orders in that class I find that the
following changes are necessary.

CLADOCERA.

Genus SiMOSsA *, nov. nom.
= Simocephalus, Scheedler.

Two genera named Simocephalus were published almost
simultaneously. The name was used for a genus of snakes
by Dr. Giinther in his ‘Catalogue of Columbrine Snakes,’
the exact date of the publication of which, I learn from him,
was October 9, 1858; and the name was applied to a
genus of Cladocera by Schcedler in a paper read September 22,
1858, and as it was illustrated by a quarto plate, it is not
likely that it could have been published within so short a
time after the reading as October 9.

Genus RHYNCHOTALONA f, nov. nom.

In 1861 G. O. Sars instituted a genus Harporhynchus for
the interesting species he was describing—Z. falcatus; but
that name having been previously (in 1848) employed by
Cabanis for a genus of birds, in 1884 C. L. Herrick substi-
tuted the name Leptorhynchus—a still more unfortunate
choice, for that name had been employed at least three times
previously, and it is therefore necessary to supersede it.

* oupos, snub-nosed.
T pvyxwros, having a beak.

368 On new Generic Names for some Entomostraca,

COPEPODA.

HALICYCLOPS *, nov. nom.

In 1893 Claus instituted a genus Hemicyclops with the type
Cyclops equoreus, Fischer ; but the name had been previously
used in a different sense by Boeck in 1872.

Genus EKUTERPINA, nov. nom.

In 1873 Claus employed the name Euterpe for a genus of
marine Copepoda with the type LZ. gracilis; but that generic
name was preoccupied by Swainson (1831) among the

Lepidoptera.

Genus TEGASTES T, nov. nom.

I propose this name as a substitute for Amymone, Claus,
1860, type A. satyrus, Claus, since Amymone was not only a
name given in 1785 to a larval form by O. F. Miiller, of
which Claus was aware when he instituted his genus, but was
employed by Savigny in 1817 for a genus of Annelids.

Genus DACTYLOPUSIA, nov. nom.

Dactylopus is in use for a genus of fishes thus named by
Gill in 1859, and therefore it is necessary that the same name
applied to a genus of Copepods by Claus in 1862 should be
changed. ‘Type D. Stremi (Baird).

CxiausipIuM, Kossman, 1874.

This name must be employed instead of Hersilia, Philippi,
a name preoccupied by Savigny in Arachnida and by Dejean
in 1834 for a genus of Coleoptera.

Genus PHYLLOTHYREUS f, nov. nom.

Instead of Phyllophora, H. Milne-Edwards, a name which
had been three times earlier employed. ‘The type is Phyllo-
thureus cornutus (H. Milne-Edwards). I may take this
opportunity of announcing this interesting species as a member
ot the British fauna. It has been known to me for more than
forty years. It was sent to me by William Laughrin at a

* dks, the sea.
+ reyaorns for oreyaorys, like réyos for atéyos, one who covers up
(Stegastes already in use).

{ pvaArop, a leaf; Oupeds, an oblong shield.

On new Generic Names for some Entomostraca. 369

time when I was employing that old coastguardsman to collect
fish-parasites for me. He said that he had found it on the
blue shark at Polperro.

The two Cornish specimens agree in every particular with
Milne-Edwards’s description and capital figures (Hist. des
Crust. vol. ili. p. 472, pl. xxxviil. figs. 18, 14). I am not
aware that the species has been recorded by any other author ;
and the type specimen was from near Tongatubu, Friendly

Islands!

CoNnGERICOLA, J. van Beneden.

This name must be used with van Beneden’s type C. pal-
lida. Vhe earlier name Cycnus, H. Milne-Edwards, 1840,

had been preoccupied by Hiibner, 1816, for a genus of
Lepidoptera.

CIRRIPEDIA.
Genus TRYPETESA *, nov. nom.

Type T'rypetesa ( Aleippe) lampas (A. Hancock).

Unfortunately the name Alcippe, which Hancock gave to
this very interesting burrowing Lepas found off the North-
umberland coast by him, was preoccupied by Blyth in 1844,
and is in use for a genus of birds. The genus Alecppe,
Hancock, is not to be found in either Scudder or Waterhouse
and Sharp. Jn Scudder, moreover, Alcippe, Blyth, did not
appear; and it was no doubt in consequence of this that a
third genus Alcippe was instituted in 1896 among insects.

* rpunntns, aborer. I have used this particular ending because Try-
petes and Trypeta are already in use.

fy

-
*,

aie

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