NAVICELLA. 



Plate VII. 



Species 2S. (Fig. u, b, c, Mus. Cuming.) 



Navicella Macrocephala. New. testa late ovata, con- 

 vexo-tumida, apice suhamplo, castaneo-fnscd vel oli- 

 vaced, linds nigris apeiie unclaid, area columellari 

 iinrantio-nifo tinctd. 



Thk large-headed Navicella. Shell broadly-ovate, 

 coiivexly swollen, apex rather large ; chestnut-brown 

 or olive, laced with zigzag black lines, columellar 

 area tinged with orange-red. 



fyi: Glillou, E«vae Zool. Soc. Cuvierienne, 1841, p. 374. 



Hdlj. Feejee Islands. 



.4 very characteristic broadly-ovate species, convexly 

 swollen towards the apex. 



Species 29. (Fig. a, b, c, d, Mus. Cuming.) 

 \avicella CiEBDLESCENS. Nav. testd ovatd, apice sub- 

 rostratd, concentrice temcistriatd, teiiui, cmrulescente, 

 olivaceo-nigro varie subtilissme tessellatd et variegatd, 

 intenlmti fasciatd, area colmnellari mibangndd. 

 The bluisu Navicella. Shell ovate, rather beaked at 

 the apex, concentrically finely striated, thin, bluish, 



variously finely tessellated and clouded with olive- 

 black, sometimes banded, columellar area rather 

 narrow. 

 Hah. Calcutta (in the streets of the city and in the Bo- 

 tanic Gardens). 



A light grey tessellated species, small and obscure in 

 pattern, and extremely variable. 



Species 30. (Fig. a, 4, c, Mus. Cuming.) 



Navicella Bougainvillii. Nav. testa ovatd, apicem 

 versus convexo-tumidd, ollvaced, lineis nigris undatu 

 pictd, inttts ccerided, ared columellari angustd, maculis 

 duab/is nigris uotatd. 



Bougainville's Navicella. Shell ovate, convexly 

 swollen towards the apex, olive, painted with waved 

 black lines, interior blue, columellar area narrow, 

 marked with two black spots. 



Recluz, Revue Zool. Soc. Cuvierienne, 1841, p. 374. 



Hub. New Ireland. 



Distinguished by its peculiar waved-line painting 

 I internal black blotches. 



and 



June, 1856. 



