Zoological Society. 521 



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. Tliis 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 eftect on them of the reagents, as I have elsewhere described 

 with respect to the lympli-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 MoUusks (Family Turbinacea) ," by Mr. Lovell Reeve. 

 Delphinula Tyria. Delpli. testa subdiscoided, squamed, an- 

 fractibus argenteo-albis, supernb et inferne Ti/rio-jnirpureis, laxe 

 convolutis, umbiliciim Icevem lacco-jmrpureum formcmtibus, an- 

 gulatis, squamis 7nimitis, in seriebus paralklis dispositis, tota~ 

 liter tectis ; angulo serie iinicd majorefimiculato ; spird depirsso- 

 plcind. 

 Icones Reeve, Conch, Syst., vol. ii. pi. 211. f. 6. 

 Long. 21; lat. If. Mus. Cuming, &c. 

 Hdb. Ad oras Novte Hollandia?. 



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 silver)^ 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 pui-ple. 



Delphinula imperialis. Delph. testa subdiscoided spiniferd 

 et squameo-liratd, anfractibus olivaceo-viridibus, idtimo pal- 

 lide purpurea, laxe. convolutis, umbilicum amplum formantibus, 

 sid)angidatis, angulo spinis gracillimis, squamaformibus, nigris, 

 superne injiexis, coronato ; unfractuum jmrte altera spinis bre- 

 vioribus, contrarie injiexis, in seriebus dispositis, interstitiis 

 squamis nigris, 7ninutis sigillatim impositis, ornatis ; spird 

 depressO'Concavd. 

 Delphinula mehmacantha, Reeve, Conch. Syst., vol. ii. pi. 211. f. 4. 

 and pi. 212. f. 10. 



Long. 2i ; lat. 1| in. Mus. Cuming. 



Hub. 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- 



j)ine 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-hke spines, bending over towards the point of the spire. Be- 

 low these are five other distinct rows of black spines ; they are, 

 Ann. ^ Mag. N. Hist, Vol. xi. Suppl. 2 M 



