560 Zoological Society. 



Anas marmorata, Temm. Arabic name, Bovrk el Biad. " Rare : a 

 good diver.'* 



Podiceps cristatus, Lath. Arabic name, Bourk el Wad, " Rare." 

 Alca Torda, Linn. Arabic name, Bourk del Bahar. " Rare." 



A paper, in which Mr. G. B. Sowerby continues the descriptions 

 of the shells collected by H. Cuming, Esq., in the Philippine Islands, 

 was next read. 



Helix annulata. Hel. testa ohovatd, crassiusculd, lavi, plerum- 

 que jlavd, fusco-cinctd ; spird elevatiusculd, obtusd, anfractibus 

 quinque rotundatiSy ultimo maximo ; aperturd rotundatosuhtrape- 

 zoidali ; peritremate lato, incrassato, albo roseo tincto ; labio co- 

 lumellari lato, crasso, planulato, postice subemarginato, antice 

 supra columellam expanso. Long. 1*0 ; lat. 0*8 poll. 

 Hab. in foUis Pandani prope Banqui, provinciae Iloconis septen- 

 tiionali ad insulam Lucon, Philippinarura. 



This beautiful species bears considerable resemblance to H. IlocO' 

 nensis, but may be distinguished by the dark chocolate colour of the 

 back of the outer lip, which is also narrower, and much less reflected. 

 Five varieties have been found by Mr. Cuming, viz. 



a. Bright yellow, with a blood- red antesutural band, which be- 

 comes darker, and nearly chocolate- brown on the last volution : back 

 of the lip and circumference of the columella dark chocolate-brown. 



b. Bright yellow : antesutural band narrow, blood-red ; circum- 

 ferential band blackish brown : in other respects similar to a., and 

 from the same locality. 



c. Nearly similar to the last, but having a broader circumferential 

 brown band, and a very narrow brown Hne between it and the ante- 

 sutural band. From the same locaUty. 



d. Pale yellow : antesutural band nearly obsolete : in all other re- 

 spects like b. 



e. Shell white : no antesutural band ; circumferential band broad, 

 and nearly black ; last volution suffused with rose-red near the back 

 of the Hp. 



Helix balteata. Hel. testd subglobosd, crassiusculd, lavi, colo- 

 ribus variis cinctd; spird elevatiusculd, obtusd, anfractibus quin- 

 que, subplanulatis, ultimo maximo ; aperturd semilunari, intus aU 

 bicante ; peritremate incrassato, angusto, leviter reflexo, extus 

 nigro ; labio columellari latiusculo, obliquo, planulato, crasso. 

 Long. 1-0; lat. 0" 8 poll. 

 Hab. in foliis fruticum ad provinciam Ilocos septentrionalis insulae 

 Lu9on, Philippinarum. 



In general form and size and colouring this species somewhat re- 

 sembles our H. Orbitulus, from which it may be at once distinguished 

 by its narrow, scarcely reflected, dark- coloured lip. The ground- 

 colour of this species is usually whitish, or lemon-yellow, and the 

 varieties are banded with dark green, gray, nearly black, and light 

 green, and the columellar lip is commonly purplish black, with a 

 crimson tinge. The following is an indication of the varieties : — 

 a. Apex dull red; ground-colour lemon-yellow; antesutural band 



