790 GASTROPODA. [Pulmotii'tii. 



(2.) Aneitea, Gray, with the following five species : A. Graeffei, 

 Humbert (= Schuettei ~ Kreffti, Keferstein), east Australia ; A. bris- 

 banensis, W. Pfeiffer, Queensland ; A. Jiirudo. Fischer, New Caledonia, 

 Loyalty Islands ; A. modesta, Crosse and Fischer. New Caledonia ; 

 A. Macdonaldi, Gray, New Hebrides. 



(3.) Aneitella, Cockerell, with two species. A. virgata, Smith, Ad- 

 miralty Islands ; A. Ben/hi, Plate, New Britain. 



(4.) ParmarionCl) Kersteni, von Martens, Kilimandjaro, East Africa. 

 According to Simroth, it is still doubtful whether this species should be 

 included in this family or not. Further anatomical investigation seems 

 to be necessary, ;md it is certainly not a Parmarion. 



Genus 1. ATHORACOPHORUS, Gould, 1852. 



Athoracophorus, Gould, U.S. Expl. Exp., xii, 1852, 1. Type: Limax biten- 

 tacttlatus, Q. & G. Janella, Gray, 1850 ; not of Grateloup, 1838. Neo- 

 junella, Cockerell, 1891. 



Animal limaciform, convexly rounded above, depressed when at 

 rest, gradually tapering backwards, tail without a mucous pore. Dorsal 

 surface (noturn) with a median groove, bifurcating in front and forming 

 the head-shield, with lateral, often branching grooves ; epidermis 

 mostly granular or papillate. Mantle small, sometimes triangularly 

 denned by grooves, situate anterior to the middle on the right side of 

 the median furrow, and containing the pulmonary orifice ; the renal 

 orifice in front. The notum is separated from the sole by a narrow 

 field or excavation (the hyponotum), over which the lateral grooves 

 sometimes extend ; the notum and hyponotum are separated by a 

 ridge (perinotum). Anal orifice between mantle and perinotum. 

 Genital orifice close to the right tentacle. Sole not divided (holopod), 

 but spirit specimens usually show it to be divided into 2 lateral and a 

 median field (aulacopod), the result of contraction in the preservative. 

 The 2 tentacles are dilated at base and tip, the eyes situated in the 

 centre of the distal end. Mouth with 2 oral lobes above, each limited 

 by 2 frontal grooves. The shell is rudimentary, consisting mostly of 

 several small irregular pieces, calcareous or consisting of conchin, 

 lying free under the cutis in the dorsal sinus. Jaw elasmognathic, 

 with a large square accessory plate above the jaw proper. "Radula 

 rolled up on the sides, folded in the centre, with a narrow elongate 

 central tooth, and 130 to 140 transverse rows of teeth, each row with 

 about 500 teeth with denticulate reflections. The muscles of the body 

 show no trace of a reduced columellar muscle. Pedal gland free, with 

 accessory glands. The cerebral ganglia are placed underneath the 

 oasophagus. 



The animals live in dark and moist places, inside soft rotten wood, 

 under dead leaves and bark, in the leaf-sheaths of nikau palms, Astelia, 

 Phormium, &c. They most likely feed on the mycelium of fungi and 

 decomposed vegetable substance. 



Distribution. Both islands of New Zealand; Chatham. Snares, 

 Auckland, Campbell, and Macquarie Islands. 



