CHLORITIS. 121 



(Aberrant group}. 



C. bougainvillei Pfr., vi, 128. C. quercina Pfr., vi, 257. 



angasiana Newc. v. hombroni Pfr., vi, 258. 



C. majuscula Pfr., vi, 255. janellii Hombr. & Jacq. 



C. isis Pfr., vi, 256. 



Section Austrochloritis Pilsbry. 



Austrochloritis PILS., Man. of Conch, vi, p. 262. ? Plecteulota v. 

 MOELL., Jahrb. D. M. Ges. 1892, p, 92, type Eulota goniostoma 

 Mlldff. 



Shell rather small, depressed, but with convex spire and obtuse 

 apex, umbilicated, unicolored ; surface hairy or marked with regular 

 series of hair-scars to the apex. Aperture round-lunar, the lip 

 expanded, thin, ends of peristome converging; sutures well-im- 

 pressed. Type C. porteri Cox, pi. 29, figs. 4, 5. 



Animal (see under Chloritis). 



Jaw arcuate, with numerous ribs (pi. 28, fig. 3, C. porteri). 



Dentition : Central and inner lateral teeth with the mesocones 

 only developed, slight lateral cutting-points upon it representing the 

 absent ectocoues. Marginals having a long, oblique mesocone and 

 a small ectocone (pi. 28, fig. 4, C. porteri). 



Genitalia (of C. porteri) lacking all accessory appendages on the 

 female side ; spermatheca lying beside the albumen gland, its duct 

 therefore very long, bound closely to the oviduct thoroughout its 

 length. Penis club shaped, the walls of its cavity corrugated, with 

 a large, fleshy papilla at the apex, beside the opening of the epiphal- 

 lus (pi. 28, fig. 2). Epiphallus long, the retractor inserted at its 

 middle; ending in a rather long flagellum. Penis retractor 

 attached to the floor of the lung cavity ; right eye-peduncle retrac- 

 tor passing between primary branches of genitalia (pi. 28, fig. 1 C. 

 porteri Cox. Fig. 2 penis of same opened, epiphallus and 

 flagellum). 



Distribution, Queensland, New Guinea and adjacent islands. 



The anatomy of P. porteri has been investigated by Hedley (Proc. 

 Hoy. Soc. Queensl. vi, pi. 15) and by myself (see above). The jaw 

 and teeth of C. chloritoides have been figured by Hedley (Proc. 

 Linn. Soc. N. S. W. (2), vi, pi. 39, 40). The anatomy of C. argillacea 

 has been described and figured by Wiegmann, in Webers' Zool 



