Zoological Society. 401 



crasso, effuso ; labio interno calloso ; columella ad basim subemar- 



ginatd. 

 Alt. -10; lat. '15 poll. 

 Hab. ? Mus. H. Cuming. 



Helicina agglutinans, Sow. jun., Thes. Conch, f. 83 to 85. Hel. 

 testd depressd, angulatd, obtuse carinatd, supra infraque aqualiter 

 convexd, minute concentrice striatd ; aperturd quadrilaterali ; labio 

 interno tenuissimo ; columella triangulari, complanatd, subumbili- 

 catd, ad basin obtuse angulatd ; labio extemo effuso, reflexo, pos- 

 tice leviter depresso ; operculo crassiusculo, irregulariter quadrila- 

 terali ; epidermide aliquando per adhcesionem rupium fragmento- 

 rum in carinam latam prcerupiam productd. 



Alt. -45; long. *75 poll. 



Hab. apud ins. Philippinas. H. Cuming legit. 



Var. a. T. luted. Ins. Guimaras. 



Var. b. T. aurantid; subtus fascid rubescente. Hab. Loboc, ins. 

 Bohol. 



Var. c. T. auraniid-rubescente. Hab. Dingley, Panay. 



The shells of this species are found on rocks, the decomposed par- 

 ticles of which are agglutinated to the epidermis in some specimens, 

 so as to form a broad broken keel on the angle of the whorls. 



Helicina Lazarus, Sow. jun., Thes. Conch, f. 91. Hel. testd 

 pallide fulvd , H. agglutinanti simillimd, sed magis elevatd ; colu- 

 melld angustiori. 



Alt. -28; lat. -40 poll. 



Hab. Bongabong, N. Ecija, ins. Luzon, Philippinarum. 



Found on leaves of palms. 



Helicina polita, Sow. jun., Thes. Conch, f. 76 to 81. Hel. 

 testd politd, tenui, pellucidd, plus minusve depressd et angulatd ; 

 anfractibus superne subcomplanatis, infra ventricosis ; labio in- 

 terno tenui, antice paululum inflato ; columelld angustatd, ad basim 

 leviter angulatd ; labio extemo tenui, expanso, reflexo, super angu- 

 lum plus minusve depresso ; operculo interne rubro, externe sub- 

 margaritaceo. 



Hab. apud ins. Philippinas. H. Cuming legit. 



Var. a. T. aurantid, magnd, angulatd. Alt. *40 ; lat. '60. Sorso- 

 gon, pr. Albay, ins. Luzon. 



Var. b. T. aurantid, minori. Alt. '20; lat. '25. Sinait, Ilocos, ins. 

 Luzon. 



Var. c. T. aurantiacd, superne rubrd. Misamis, ins. Mindanao. 



Var. d. T. aurantid; fascid rubrd in medio super angulum anfrac- 

 tuum. Abulug, pr. Cagayan, ins. Luzon. 



Var. e. T. aurantid, fasciis albis binis ornatd. St. Nicholas, ins. 

 Zebu. 



Var. /. T. aurantid, superne pallide rosed. Abulug, pr. Cagayan, 

 ins. Luzon. 



From the large, somewhat angulated, orange variety, down to the 

 more globose and small varieties, the gradation is so slow that it is 

 impossible to find a line of demarcation sufficiently distinct to admit 



Ann. §• Mag. N. Hist. Vol. x. Suppl. 2 D 



