300 Messrs. J. C. Melvill and R. Standen on 
indeed, but comes in the same category as our species, which 
occurred frequently at the above locality. It bears, in 
miniature, an almost exact resemblance to a catherine-wheel, 
hence the specific name. 
Cerithium verecundum*,sp.n. (Pl. XXI. fig. 5.) 
C. testa parva, solidiuscula, eleganter fusiformi, attenuata, pallide 
straminea; anfractibus decem, quorum apicales duo fusci, non 
hyalini, ceteris apud suturas multum impressis, tumidulis, tribus 
liris spiralibus, ultimo quatuor, omnino accinctis, longitudinaliter 
costulis obliquis decoratis, ad juncturas costularum lirarumque 
gemmuliferis, gemmulis levibus, nitidis, anfractibus hic illic 
variciferis; apertura oblonga, labro paullum incrassato, apud 
basim prolongato, columella fere recta. 
Long. 4:20, lat. 1 mm. (sp. maj.). 
Hab. Gulf of Oman, lat. 24° 58’ N., long. 56° 54’ E., 
156 fathoms. 
A fairly abundant little species, which may be distinguished 
by its pale straw-colour, irregular varices, channelled sutures, 
and gemmuled lire. The most frequent form, however, is 
smaller than that selected for the type, the apex and general 
shape being the same, while the whorls are less ventricose, 
and there is rarely to be seen any trace of varices. ‘This 
small form may possibly be a separate, very nearly allied 
species ; if so, the line of demarcation is almost too slight to 
permit of verbal differentiation. 
Scissurella etheria, sp.n. (PI. XXI. fig. 6.) 
S. testa parva, heliciformi, angulatim ovata, obtecte umbilicata, 
supra depresso-conica, undique alba, delicatissima, eleganter 
sculpturata ; anfractibus 4, quorum apicalis parvus, mamillatus, 
ceteris infra, juxta suturas, bicarinatis, undique longitudinaliter 
oblique tenuiliratis, et spiraliter obscure striatis, sub lente ad 
juncturas pulchre et minutissime gemmulatis, ultimo ad peri- 
pheriam bicarinato, inter carinas ad labrum sinu perlongo, 
angusto; apertura subrotunda, intus alba, labro ad sinum paul- 
lum effuso, margine columellari supra umbilicum angustum 
extenso. 
Alt. 1:28, diam. 2 mm. 
Hab. Gulf of Oman, lat. 24° 58’ N., long. 56° 54’ E., 
156 fathoms. 
One of two species of Scissurella extracted sparingly 
from shell-sand gathered at the above rich locality, in com- 
pany with what we are inclined to consider S. aédonia, 
* Verecundus, modest. 
