V II O K U S. 



Plate II. 



Species 5. (Fig. a and b, Mus. Stainforth.) 



Phorus Solaris. Phor. testa orbiculari, depresso-conied, 

 calculis paucis sparsis versus apicem agglutinatis ; 

 apice acuto ; superficie striis obliquis et undulatis 

 inscriptd; anfractibus tubuloso-radiatis, tubulis te- 

 nuibus, cavis, apertis ; infernd facie plano-concavd, 

 undulatim striata ■ aperturd semicordatd ; umbilico 

 parvo. 



The sun Phorus. .Shell orbicular, depressly conical, 

 with a few scattered pebbles agglutinated towards 

 the apex ; apex acute ; surface inscribed with ob- 

 lique and waved strise ; whorls radiated with open 

 spouted tubes ; under surface flatly concave, undu- 

 lately striated ; aperture semi-heart-shaped ; um- 

 bilicus small. 



Reeve, Pro. Zool. Soc, 1842; Conch. Syst., vol. ii. 

 pi. 214. f. 1 and 2. 

 Trochus Solaris, Linnaeus, Lamarck. 



If ah. Malacca (found in coarse sand at the depth of 

 seven fathoms) ; Cuming. 



This very beautiful shell, in which the periphery is 

 more or less extended throughout into hollow spouted 

 tubes, has never more than a few pebbles agglutinated 

 to the first one or two whorls. 



Species 6. (Mus. Stainforth.) 



Phorus corrtjgatus. Phor. testa orbiculari, obeso-co- 

 nicii, alba, diagonalitcr corrugutd, volutum peripherid 

 conchijliorum lapidumque frustis plants ornatd ; facie 

 infernd pa/lidd, leviter granosd et striata. 



The wrinkled Phorus. Shell orbicular, stoutly coni- 

 cal, white, diagonally wrinkled, periphery of the 

 whorls ornamented with flat pieces of shells and 

 stones ; under surface pale, lightly granulated and 

 striated. 



Reeve, Pro. Zool. 



pi. 214. f. 5. 

 Hub. ? 



Soc, 1S42; Conch. Syst., vol. 



The disposition of the agglutinated fragments in this 

 species is very peculiar and distinct from that in any 

 other ; the generic property being confined to the base 

 of the whorls, they become inserted edge-wise, ranging 

 with great regularity side by side. 



Species 7. (Fig. a and b, Mus. Stainforth.) 



Phorus exutus. Phor. testd orbiculari, deprcsso-conicd, 

 apice acuto, rosaceo-fulvd, tenuissimd, volutum peri- 

 pherid inconcinniter undulatd, dilatatd ; superficie 

 diagonaliter striatd et sulcatd ; infernd facie pallida", 

 nitente, striatd, versus marginem granosd, lamelld 

 cavitatem formante. 



The divested Phorus. Shell orbicular, depressly co- 

 nical; apex acute, rosaceous yellow, very thin; peri- 

 phery of the whorls inelegantly undulated, dilated ; 

 surface diagonally striated and grooved ; under 

 surface pale, shining, striated, granulated towards 

 the margin, the fold forming a kind of cavity. 



Reeve, Pro. Zool. Soc, 1842; Conch. Syst., vol. ii. 

 pi. 215. f. 'J and 10. 



Bab. China. 



This shell exhibits very slight evidence of ever having 

 had any matter agglutinated to it. It somewhat re- 

 sembles the Phorus Indicus, but may be readily distin- 

 guished by the elaborate manner in which the whorls 

 are diagonally carved with grooves and strise. The pe- 

 riphery of each volution, which is most unusually dilated, 

 is exceeding thin and fragile, and very unevenly undu- 

 lated. 



March 1843. 



