68 Mr. T. H. Withers on 
Material (number of specimens).. 
In addition to the specimens mentioned above, there is in 
the Geological Department of the British Museum, registered 
59,825, a fragmentary example of L. pulchella, which came 
from the MiddleChalk of Cowslip Pit, near Guildford, Surrey. 
It consists of about ten rows of the three median series of 
peduncular plates. At least two, if not three, further frag- 
mentary specimens of L. pulchella arein the Brighton Museum 
(Willett Collection, No. 40), on a piece of chalk from the 
Middle Chalk of Malling, Kent. 
Of Stramentum haworthi from the Niobrara Chalk of 
Kansas, there is in the Geological Department of the British 
Museum, collected by Mr. H. 'T. Martin, (1) two com- 
paratively large and almost complete specimens on a small 
yellowish slab, registered I. 15,945 ; (2) a large yellowish 
slab with about nine small individuals (registered In. 18,990), 
and a larger pinkish slab with remains of at least twenty 
individuals (registered In. 18,989) : in both cases the shells 
appear to have been attached to some strap-like organism of 
which only a stain remains, and almost all the specimens 
cousist of one side of the shell with the inner surface upper- 
most, three or four retaining the scutum, which shows the 
pit for the adductor muscle. 
Altogether the material known to me comprises no less than 
seventy individuals, and of these quite fifty represent at least 
oue side of the shell in a fairly good state of preservation. 
Name. 
The name Loricula was first given to a cirripede by 
G. B. Sowerby, junr. (1843). This generic name has been 
widely accepted, and has been used by Darwin (1851) and 
every subsequent author on fossil and recent cirripedes. It 
is the more unfortunate that it should be preoccupied by 
Loricula, Curtis (1833), a genus established for a Hemipterid. 
In 1897, W. N. Logan founded the genus Stramentum on 
two species of cirripedes occurring in the Chalk of Kansas. 
One of these had previously been described by Prof. Williston 
(1896) under the name Polliciyes haworthi, and it is not only 
because of this, but because it is the first of the two species 
described by Logan, and is more complete than the second 
species S. tabulatum, that S. haworthi is here taken as geno- 
type of the genus Stramentum. 
There is no room for doubt that the Kansas species, 
Stramentum haworthi, is congeneric with Sowerby’s Loricula 
pulchella, and although Logan was evidently unaware that 
