386 PfiOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



(vol. xxiii, p. 122, 1910) a synopsis of the classification of this group 

 as adopted in the llamial of Concholoffi/, shortly to be issued. I at 

 once forwarded specimens and notes to Dr. Pilsbry, asking him to 

 make use of tliem. In the paper quoted, Pilsbry recognized three 

 genera of Tornatellinids : Elasmias, nov., with Tornatellina aperta, 

 Pease, as type; Tornatellina^ Pfeiflfer, 1842, with T. clausa = 

 bilamellata (Anton) as type; and Tornatellides^ nov., witli 2\ simplex, 

 Pease, as type. 



The introduction of the first-named genus seemed necessary to me 

 from a study of the animal and shell characters of the mollusc 

 mentioned as T. inco?ispicua, Brazier, in the earlier part of this paper. 

 The fact that this mollusc was only found in one place on the low- 

 lying part of the island nearest the present and former dwelling- 

 places of the few settlers, led me to suggest its recent introduction to 

 this faunula. Its recognition as identical with a Lord Howe mollusc, 

 rare or apparently of restricted habitat under similar conditions, seems 

 to confirm my conclusion,' whilst, as pointed out to me by Mr. Hedley, 

 the figures of T. eucharis, Brazier, and T. WakeJieldcB, Cox, approach 

 this and may refer to the same species. I have recognized five species, 

 two of which are ground-dwellers and three tree-dwellers. 



The Elasmias would appear to be constantly a plant-living genus, 

 as I note that when Benson described his T. cernica (certainly referable 

 to this group) he noted (Ann. Mag. j^Tat. Hist., ser. ii, vol. vi, p. 254) 

 " creeping in showery weather on the leaves of Niccioli hedges ". One 

 of the tree-living species has the armature of the mouth closely 

 agreeing with that of 2\ hilamellata, Anton, whilst in the other it is 

 very slender. The two ground-dwelling forms are very different, one 

 being a conical straight- sided form, the other being probably the one 

 recorded as T. novoseelandica, Pfeiffer. In these Proceedings, vol. viii, 

 p. 263, pi. xi, fig. 30, 1909, Suter described T. suhperforata and 

 observed: "The inflated body whorl, the straight, not tortuous, 

 columella, and the narrow perforation separate it at once from T. novo- 

 seelandica, Pfeiffer." 



When Pilsbry's monograph of these molluscs appears, we shall 

 learn all about these. 



4. General Coxclfsions. 



It was anticipated that the collection of Land Mollusca would give 

 some clue as to the relationship of the group, but I do not think any 

 considerable deductions can be drawn from them. As a whole, their 

 affinity is undoubtedly with the forms of the North and not with 

 tliose of I^ew Zealand. It must never be forgotten that New Zealand 

 lias been well searclied for minute land molluscs, aiul has a great 

 area with variable climatic conditions, as well as being most 

 favourably disposed for the rapid differentiation of these minute forms 

 through isolation. The northern islets have still innumerable minute 

 forms to be brought to light, and not until much more is known can 

 anything very definite be decided. The negative evidence afforded 

 by this collection is, however, of much interest, and may be briefly 

 glanced at. The faunulas and flora of the Kermadec Group has been 



