128 Transactions.—Zoology. 
xxiii, p. 89). Since then three more species have heey 
recognised, all of which are species described long ago under 
the generic name of Patula, viz. :— 
(a.) HE. varicosa, Pfeiffer, sp. 1854 (fig. 12). I sent Speci- 
mens of H. timandra, Hutton, to Mr. Edgar A. Smith, of the 
British Museum, to compare them with Pfeiffer’s type of 7 
varicosa. Mr. Smith most obligingly informed me that they 
were not identical, but that Pfeiffer’s Helix varicosa wag 
undoubtedly also an Hndodonta, having one tooth (overlooked 
by Pfeiffer and Reeve) situated on the body-whorl. It ig g 
slender lamella, and might easily be overlooked. 
(b.) H. timandra, Hutton, sp. 1883 (fig. 13), is very much 
like the foregoing, but is smaller, more openly umbilicated, 
has more riblets, and the armature of the mouth is different, 
there being three lamellae, one on the body-whorl, one at the 
base of the columella margin, and one on the outer lip. 
(c.) H. jessica, Hutton, sp. 1883 (fig. 14). On examining 
this shell, which is very nearly allied to the foregoing two 
species, | found it to have szx teeth in the aperture, of which 
two are situated on the body-whorl, one at the base of the 
inner lip, and three on the outer lip. 
According to my present knowledge, H. timandra is con- 
fined to the North island, the other three to the South Island. 
12. Charopa coma, Gray, var. globosa, Suter, 1892. 
This variety is the same as var. beta, Pfeiffer, 1853; but, 
as varieties are to be named in the same way as species, and 
there exists already a Charopa beta, Pf. (= barbatula, Reeve), 
Pfeiffer’s name can hardly stand. This variety is not iden- 
tical with Ch. lucetta, Hutt. (= stokest, Smith), as sup- 
posed by several conchologists. 
13. Charopa caput - spinule, Reeve, sp. 1852. Plate 
XVI., figs. 15, 16 (= epsilon, Pfeiffer). 
The dentition of this species has never been published 
before, and, as the radula is a typical form of Charopa, I give 
here a figure of it and of two jaws, showing the variability of 
the latter in the same species. The jaw is membraneous, and 
distinctly striated, not plaited. The radula has the formula 
i2—4—1—419. It is hardly necessary to describe it, the 
characters being mainly the same as delineated in former 
papers by Professor Hutton and myself for Charopa. 
14, Tesseraria* novoseelandica, Pfeiffer, sp. 1854. Plate 
mV Ey Hee ET. 
The true systematic position of this little pupiform molluse 
_* Phenacharopa, Pilsbry, 1898 (not Tesseraria, Haeckel, 1879 ot 
1880) ; vide Man. Conch, (2), vol. an 29. 
