78 Moll. 
VII. MOLLUSCA. 
POLYPLACOPHORA. 
Anatomy ; Plate, Zool. Jahrb. Suppl. iv, pp„ 1-243, figg. 
Morphology of the gills and renal and genital orifices; Plate, Zool. Anz. 
xx, pp. 267-276. 
Chiton exoptanduSy South Australia; Bednall, P. Malac. Soc. London, ii, 
p. 152, fig. : n. sp. 
Cryptochiton , growth of; Heath, P. Ac. Philad. 1897, p. 299. 
Ischnochiton parkeri , New Zealand; Suter, P. Malac. Soc. London, ii, 
p. 186, fig. : I. ( Stenochiton ) pilsbryanus , p. 142, 7. pilsbryi , p. 143, I. 
tateanus , p. 147, 7. thomasi , p. 149, South Australia; Bednall, P. 
Malac. Soc. London, ii, figg. : n. spp. 
Tonicia calbucensis, Chile and Patagonia; Plate, Zool. Jahrb. Suppl. iv, 
p. 205, fig. : n. sp. 
