102 
contains plenty of corpuscles, of which indeed it is almost entirely 
made up in immature animals, from the embryo upwards, is rendered 
ropy by alkalies and by saline solutions. This action of these solu- 
tions, which is very remarkable on all animal fluids containing a great 
quantity of fresh primary or isolated cells, appears to take place from 
the effect on them of the reagents, as I have elsewhere described 
with respect to the lymph-globules (Gerber’s Anatomy, Appendix, 
pp- 91, 96, and 97). In some recent experiments, however, these 
globules were not destroyed, but only a little misshapen or made 
rather fainter, after having been kept some days in solutions of mu- 
riate of ammonia and other salts. 
“Descriptions of new species of Delphinula, a genus of Pectini- 
branchiate Mollusks (Family Turbinacea),” by Mr. Lovell Reeve. 
DeLrHINuLA Tyria. Delph. testa subdiscoided, squamed, an- 
Sractibus argenteo-albis, superné et inferne Tyrio-purpureis, laxé 
convolutis, umbilicum levem lacco-purpureum formantibus, an- 
gulatis, squamis minutis, in seriebus parallelis dispositis, tota- 
liter tectis ; angulo serie unica majore funiculato ; spird depresso- 
plana. 
Icones Reeve, Conch. Syst., vol. il. pl. 211. f. 6. 
Long. 23; lat. 13. Mus. Cuming, &c. 
Hab. Ad oras Nove Hollandiz. 
This is the first discovered large species of Delphinula that is abso- 
lutely destitute of spines or nodules. The surface of the shell, which 
is entirely covered with small scales ranged in parallel series, is of 
clear silvery white; the upper and lower portions of the whorls are 
tinged with a rich Tyrian purple, and the umbilicus, which is smooth, 
is of a lighter lake purple. 
DELPHINULA IMPERIALIS. Delph. testé subdiscoided spinifera 
et squameo-liraté, anfractibus olivaceo-viridibus, ultimo pal- 
lidé purpureo, laxé convolutis, umbilicum amplum formantibus, 
subangulatis, angulo spinis gracillimis, sywameformibus, nigris, 
superné inflexis, coronato ; anfractuum parte altera spinis bre- 
vioribus, contrarié inflexis, in seriebus dispositis, interstitits 
squamis nigris, minutis sigillatim impositis, ornatis ; spirda 
depresso-concavd. 
Delphinula melanacantha, Reeve, Conch. Syst., vol. ii. pl. 211. f. 4. 
and pl. 212. f. 10. 
Long. 21; lat. 12in. Mus. Cuming. 
Hab. Ad insulam Mindanao, Philippinarum. 
A magnificent specimen of this remarkable shell was dredged up 
by Mr. Cuming in fathoms’ water at , one of the Philip- 
pine Islands, and we need only refer to our figures of it in the ‘ Con- 
chologia Systematica,’ in addition to the above description, to show 
how distinct is this species from any other of the genus. The shell 
is of a palish-green colour towards the apex, but the last whorl is 
purple and elegantly surmounted with a row of tall, black, slender, 
scale-like spines, bending over towards the point of the spire. Be- 
