GLAUCONOME.— Plate I. 



rugosfi, circiter umbones plus mitmsve erosd, lateribvs 

 rotundatis, epidermide peculiariter corrngatd, latere 

 postico subobsolet'e angulato. 



The -wrinkled Glauconome. Shell elongately oblong, 

 wrinkled, more or less eroded about the umbones, 

 sides rounded, with the epidermis upon them pe- 

 culiarly shrivelled, posterior side faintly angulated. 



Hanlet, Species of Shells (Wood, Ind. Test. 2nd Supp., 

 pi. x. f. 24.) 



Hah. Mouths of rivers running into the Bay of Manila. 



Variety ft. 

 Testa subangustior. 

 Shell rather narrower. 



Hab. A small river in Jimamailan, island of Negros, 

 Philippines ; Cuming. 

 This species, which is by far the largest of the genus, 

 presents a very peculiar arrangement of the epidermis. 

 In the middle of the shell it lies in ridges parallel with 

 the lines of growth, but towards the ends, especially the 

 anterior, it turns suddenly upwards and becomes di- 

 spersed in scattered shrivelled wrinkles. 



Species 5. (Mus. Cuming.) 



Glauconome angulata. Glauc. testa elongato-oblongd, 

 striata, circiter umbones plus minusve erosd, latere 

 antico rotundato, postico angulato, carina obtusd ab 

 umbonibus ad marginem decurrente. 



The angulated Glauconome. Shell elongately ob- 

 long, striated, more or less eroded about the um- 

 bones, anterior side rounded, posterior angulated, 

 with a blunt keel running from the umbones to the 

 margin. 



Reeve, Pro. Zool. Soc, 1S44. 



Hab. Mouth of a river at Jinigaran, island of Negros, 

 Philippines (found in sandy mud at low water) ; 

 Cuming. 



An angulated species in which the epidermis is of 

 rather a dingy character. 



Species 6. (Mus. Cuming.) 



Glauconome corrugata. Glauc. testd elongato-ovatd, 

 subtilissime striatd, circiter umbones erosti, lateribus 

 rotundatis, postico acuminata -angulato, epidermide 

 unguium super corrugatd , intus vivide purpureo- 

 radiatd. 



The wrinkled Glauconome. Shell elongately ovate, 

 very finely striated, eroded about the umbones, 

 sides rounded, posterior side acuminately angled, 

 with the epidermis wrinkled upon the angle; inte- 

 rior vividly rayed with purple. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. Mouths of rivers running into the Bay of Manila 

 (found in the mud at low water) ; Cuming. 

 The posterior side of this species is more acuminately 

 angled than that of any other ; the epidermis is deli- 

 cately wrinkled upon the angle, and the interior of the 

 shell is rayed with purple. 



Species 7. (Mus. Cuming.) 



Glauconome curta. Glauc. testd ovatd, carta, tenui, 

 subtilissime striatd, ad umbones pendulum erosd, la- 

 teribus rotundatis ; intus earuleo-carneo tinctd. 



The short Glauconome. Shell ovate, short, thin, 

 very finely striated, a little eroded at the umbones, 

 sides rounded ; interior stained with bluish flesh- 

 colour. 



Hanley, Species of Shells (Wood, Ind. Test., "2nd Supp., 

 pi. ? f. ?). 



Hab. Mouth of a river in Agoo, province of Pagasinan, 

 island of Luzon (found in sandy mud at low water) ; 

 Cuming. 

 This species is of a shorter ovate form than any other ; 



it has a fine silken epidermis, and the interior is of a 



bluish salmon-colour. 



Species 8. (Mus. Cuming.) 



Glauconome cerea. Glauc. testd oblongo-ovatd, pal- 

 lida stramined, subtilissime striatd, lateribus rotun- 

 datis, postico subangulato-attenuato. 



The waxen Glauconome. Shell oblong-ovate, pale 

 straw-colour, very finely striated, sides rounded, 

 posterior side rather angularly attenuated. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. The river Ganges. 



A very delicate pale straw-coloured shell, having very 



much the appearance of wax. 



Species 9. (Mus. Linn. Soc) 



Glauconome virens. Glauc. testd cylindraceo-oblongd . 

 tenui, lateribus rotundatis, latere postico subacumi- 

 nato, v'uc angulato. 



The green Glauconome. Shell cylindrically oblong, 

 thin, sides rounded, posterior side rather acumi- 

 nated, very slightly angulated. 



Hanley, Species of Shells. 

 Solen virens, Linnaeus. 



Hab. ? 



The shell here figured is in the collection of the 

 Linnean Society, with the name Solen virens attached 

 to it in Linnaeus's own hand-writing. 



