PUEPUEA.— Plate II. 



The princely Purpura. Shell ovate, slightly attenuated 

 at the base, spii-e short, transversely deeply striated, 

 strife regidar, intermediate ridges rather flattened, 

 upper part of the whorls encircled with two rows of 

 obsolete nodules ; columella longitudinally excavated, 

 aperture very large, lip simple, finely denticulated, 

 broadly sinuated at the upper part ; ashy brown, 

 encii'cled with narrow distant white zones articulated 

 with brown, columella reddish yellow, interior of the 

 aperture pinkish white, ornamented with numerous 

 radiating red lines. 



Lamarck, Amm. sans vert. (Deshayes edit.) v. x. p. 59. 

 Bucciuum persicum, Linnaeus. 



Hah. Island of Bohol, Philippines (on the reefs at low 

 water ) ; Cuming. 



The narrow articulated brown and white zones which 

 constitute so characteristic a feature in this well-known 

 species, seem to have a tendency to become nodidous 

 throughout ; although nodides are only apparent in the 

 two uppermost zones which encii-cle the spii-e. 



Species 9. (Mus. Cuming.) ' 



Purpura columellaris. Purp. testa subohlongo-ovatd, 

 crassd, spird hrevimculd ; transverwH coslatdet Virata, 

 c.ostis rude nodidosis ; columella lata, lemter e.vcavatd, 

 medio olisolete wdpUcatd, labro denticulato et sulcato, 

 dentibus interioribus bints ; nigricante-fuscd, columella 

 et aperturtB margine rufescentibus, fauce nifescenie, 

 interdum liratd. 



The columellar Purpura. Shell rather oblong-ovate, 

 thick, spire rather short ; transversely ribbed and 

 ridgod, ribs rudely noduled ; columella broad, sbghtly 

 excavated, with a single almost obsolete plait in the 

 middle, lip denticulated and grooved, inner teeth in 

 pairs ; blackish brown, columella and edge of the 



aperture reddish, interior reddish-white, sometimes 



ridged. 

 Lamarck, Anim. sans vert. (Deshayes' edit.) v. x. p. 62. 

 Hab. Gallapagos Islands (on exposed rocks at low water) ; 



Cuming. 

 Distinguished by its solid nodidous structure, and 

 strongly gi'ooved and denticidated lip. 



Species 10. (Mus. Cuming.) 



PuRPUR.A KuDOLPHi. Vurp. testd suboblongo-ovatd, basem 

 versus attenuatd, spird breviusculd ; ar/fractibus su- 

 perne subangulatis, transversim hiciso-striatis, zonis ob- 

 tuse nodiferis subdistantibus infra angulum ciiigulatis ; 

 colmnelld longitudinaliter sulcatd, labro slmplici, su- 

 perne sinuato, minute denticulato ; fusco-nigricante, 

 raaculis luteo-albicantibus irregulariter aspersd ; colu- 

 melld rufescente, apertura fauce albidd, rufescente 

 lineatd. 



Eudolph's Purpura. Shell rather oblong-ovate, atten- 

 uated towards the base, spii'e rather short ; whorls 

 slightly angulated round the upper part, transversely 

 deeply striated, encircled beneath the angle with 

 rather distant obtusely nodiferous zones ; columella 

 longitudinally grooved, lip simple, sinuated at the 

 upper part, minutely denticidated ; brownish black, 

 irregularly sprinkled with yellowish-wliite spots, 

 columella reddish, interior of the aperture whitish, 

 lineated with red. 



Lamarck, Anim. sans vert. (Deshayes edit.) v. x. p. 60. 



Hab. Matnog, Province of Albay, Island of Luzon, PhiUp- 

 pines (on exposed rocks at low water ) ; Cumuig. 



The characters of this species present a sort of confused 

 modification of those of the Purpura persica ; the trans- 

 verse zones are broader and most irregularly articulated, 

 and the nodules are of a rude blunted growth. 



