218 MR. T. D. A. COCKKRELL ON THE [Apr. 7, 



External genital orifice on a pale patch, below and slightly anterior 

 to respiratory orifice. No regular dorsal grooves. 



Genital orifice from head 13, from respiratory orifice 5, from sole 

 2| millim. Respiratory orifice from head 16, from genital orifice 5, 

 from sole 7 millim. 



Described from a specimen in the British Museum, from the south 

 side of Cook's Straits, New Zealand {Wellington Museum). 



Hyalimacince. 



Contains the genus Hyalimax, H. & A. Ad., with one species in 

 the Andaman Is., one in the Nicobar Is., one in Bourbon, two in 

 Mauritius, and one only on the Asiatic mainland — H. viridis Theob., 

 of Pegu. 



Succineinfe. 



The typical but testaceous genus Succinea is widely distributed in 

 both hemispheres. A slug-like genus, Omalonyx, d'Orb, is found 

 in Trinidad, British Guiana, Brazil, and La Plata, and reported also 

 from Guadeloupe and Juan Fernandez. A specimen in the British 

 Museum from Pernambuco {H. N. Ridley) may be O. patera, 

 Doring ; it is paler and less marked than O. unguis. Per. 



Vaginulid^. — Veronicellince. 



This subfamily consists of the genus Vcronicella, Blainv. 

 ( Vaginiila, Per.), with very numerous species in tropical regions, 

 and the monotypic genus or subgenus Leonardia, Tapp.-Can., 

 which differs in the more posterior position of the female genital 

 orifice. The genus Veronicella consists of about 133 species, distri- 

 buted as shown on pp. 219-220. The correct numbers cannot be 

 exactly ascertained, as it is probable that some of the species will prove 

 synonymous with others, while others may have to be placed in dis- 

 tinct genera \ It is also probable that many species remain to be dis- 

 covered. The numbers given for each country, added together, make 

 more than the total of 133, owing to the fact that several species 

 inhabit more than one country. As a rule, however, the species have 

 not a wide distribution ; very many are peculiar to islands. There 

 are no species in the Palaearctic orNearctic Regions, the occurrence 

 of V.floridana in Plorida being merely an indication of the West- 

 Indian affinities of the fauna of that State ; while the anomalous fact 

 of a species {V. scliivelya, Pilsbry) in Bermuda seems to find its 

 explanation in the probable introduction of the Bermuda species 



' For example, I have recently examined specimens in the British Museuiu 

 from the Neotropical region which seem worthy of at least subgeneric distinc- 

 tion, namely a species from Eio Janeiro referred to V. taunaysi, F6r., and the 

 true Veronicella Icsvis, Blainv., from Jamaica. F6russac's name Vaginnla may 

 be used for the former, and thus we get : — 



(1) FeTO»/cc//a, Blainv. Sole narrow, rounded and not projecting beyond 

 mantle posterioi'ly. Female genital orifice post-median. (Type, V. Uevit!, 

 Blainv.) 



(2) Vfiginida, F^r. Sole broader, projecting beyond mantle posteriorly. 

 Female genital orifice antemedian. (Type, V. tautiaysi, Fer.) 



