iH. \ GASTROPODA. 7(57 



straight narrow tube. The muscular system is divided into right, 

 left, and median bands, the latter forming the powerful retractor of 

 the buccal mass. (Murdoch.) 



Pedal Gland. This opens below the mouth ; it forms a small 

 undulating tube passing along the body-cavity, partially enveloped 

 in a delicate tissue, which is attached to the body and terminates in 

 the solid substance of the tail. (Murdoch.) 



Genitalia. The verge is large and muscular, with a slight con- 

 traction in its lower half ; a little below this point the outer envelope 

 or sheath separates from the verge, and forms a broad strong mem- 

 brane, which is attached to the anterior portion of oviduct and adjoin- 

 ing body-wall. The retractor muscle is inserted at the apex, and 

 attached distally to the dorsal body-wall, about midway between the 

 pulmonary chamber and mantle -margin ; the vas deferens forms a 

 slender tube, the free portion short ; it passes under the sheath at the 

 point of separation, curving round, and enters the cavity of the verge 

 a little below the apex ; at this point the interior walls are strongly 

 corrugated. The hermaphrodite gland forms 4 or 5 small lobes im- 

 bedded in the liver ; hermaphrodite duct closely convoluted, and of a 

 dark colour. Albumen-gland large, tongue-shaped ; from the base 

 of this gland proceed the uterus and prostate, whitish in colour, be- 

 coming darker in the lower portion, and thrown into several wide 

 sacculated convolutions. The spermatheca is an oval-shaped sac 

 attached to the oviduct by a strong membrane ; it branches from the 

 free portion as a narrow tube. (Murdoch.) 



Type in the Mus. Hist. Nat., Paris. 



Hob. Northern parts of the North Island : North Cape, Cape 

 Maria van Diemen (Dieffenbach, Gillies, &c.) ; Kaitaia ; Mangonui : 

 Whangaroa ; Bay of Islands (Captain Cook, Gabert, Colenso. &c.) ; 

 Whangamumu (Captain Bollons) ; Helena Bay ; Whangarei ; Chicken 

 Island (C. Cooper) ; Poor Knights Islands (Captain Bollons). 



This snail is mostly found at the roots of Phormium, forming 

 regular nests, eggs and young snails in the centre, surrounded by adult 

 specimens, and outside these there is usually a circle of dead shells 

 (Captain Bollons). It is also found in the bush under dead leaves, 

 and amongst Hymenophyllum. Its chief food seems to consist of 

 decayed karaka-leaves, as is the case with P. Bollon^i. 



Remarks. The type was taken by Gabert at the cascade of Keri- 

 keri, under trees bordering the river of the same name. It was named 

 after the celebrated Maori chief Hongi Ika. who died at Mawhe in 

 1828. The first correct spelling of the name "Hongi" I found in the 

 work of Lesson and Martinet, quoted above. 



T. F. Cheeseman supplies the following information (T. N.Z.I., 

 xxix, 354) : Cape Maria van Diemen. Under the flax-bushes the rare 

 land-shell Bulimus bovinus can be obtained in some numbers, although 

 it has decreased considerably since pigs and goats were introduced. 



