340 Zoological Society, 



nigris variis plerumque ornata ; anfractihus quinque suhventri- 

 cosis, ultimo spiram fere duplo longiori, aperturd subovatd, 

 postic^ subacuminatd, inius albd, zonas exhihentihus ; peritremate 

 reflexo, albo ; columelld rectiusculd, labio columellari subincras- 

 sato, antice reflexo, ad labium externum adjuncto, 

 Hab. ad insulam Ticao Philippinarum. 



This species has been inadvertently figured in the ' Conchological 

 Illustrations ' under the name of Luzonicus, having previously been 

 figured by De F^russac in his ' Hist. Nat. des MoUusques terrestres et 

 fluviatiles/ tab. 1 12. f. 5, 6, and described in the 'Encycl. Method., by 

 Bruguifere* under the name of ovoideus, which name must of course 

 be retained. Brugui^re's specimen was quite white ; those figured 

 by Lister and De Ferussac had a single dark band. Mr. Cuming 

 has brought the following varieties : — 



a. White, the anterior part of the first three volutions light brown. 

 From the island of Masbate, on leaves of trees. 



b. White, with three broad brown bands close behind the suture. 



c. The same as the last, with an additional black band in front of 

 the postsutural band. 



d. White, with a narrow brown band behind the suture. 



e. Brownish white, with perfectly white antesutural band, and 

 three very broad dark brown bands. 



/. White, with two dark brown bands, both anterior to the cir- 

 cumference of the shell. 



g. White, with a single dark brown band. This is the variety 

 that has been figured in ' Conch. Illustr.,' Bulinus, f. 53, under the 

 name of B. Luzonicus ; it is also given in Guerin's * Magazin de 

 Conchyliologie' (1838), tab. 116. f. 2. under the name of B. Coste- 

 rii : of course both these names must be abandoned in favour of the 

 older name of Bruguiere. 



h. Entirely white. This variety is of smaller size than most of 

 the others. 



i. Apex reddish brown, ground-colour white; anterior part of the 

 last volution pale brown, with three dark brown bands. 



k. Apex white or pale reddish, antesutural band white ; then two 

 broad dark brown bands, nearly confluent; then a lighter brown 

 band, sometimes nearly white ; then a broad dark brown band ; and 

 finally, the circumference of the columella white. 



/. White, with two dark brown bands in front, and a very nar- 

 row light brown band behind the circumference. 



Helix Albaiensis. Hel. testa subglobosa, depressiuscula, tenuis, 

 lavis, alba, plerumque fusco-zonata, lineis incrementi tenuissimis 

 solilm tnsculpta ; spird subdepressd, anfractibus 3^ subconvexis, 

 ultimo maximo inflato; aperturd extus rotundatd; peritremate albo„ 

 rotundato, reflexo, mediocri ; intus sinuatd, sinu profundo, antice 

 per columellam, latiuscuJam, albam, postice per modificationem 

 anfracttls penultimi efformato ; suturd subinconspicud. 



Long. 1-2; lat. I'S poll. 



* Hist. Nat. des Vers, tome vi. p. 335. 



