234 NILS HJ. ODHNER 
Fam. Limacidae. 
Limax arborum Bouchard-Chantereaux. — Masatierra, Colonial Valley, 
3 sps., max. |. 37 mm (?°/7 1917), and 4 sps., max. |. 20 (7/12 1916). Masafuera, 
beneath a stone, many sps., max. |. 33 mm (?"/2 1917). The species is new to 
the Juan Fernandez Islands. 
Agriolimax agrestis Linné. — Masatierra (‘/12 1916), 2 sps., max. 1. 20, 
and Colonial Valley (?°/7 1917), many sps., max. 1. 29,5; about 300 m above 
sea level, 2 sps., l. 19,5 (*/8 1917); the Portezuelo quebrada, a few sps., 1. 29,5 
(2°/7 1917). — Masafuera, 1000 m above sea level, in ferns (7/3 1917), 1 sp., 
l. 9,55 mm. Though widely distributed by commerce throughout the world, 4. 
agrestis has not until the present been recorded from the Juan Fernandez Islands. 
Milax gagates Draparnaud. — Masatierra, 
Colonial Valley, many sps., max. |. 43,5 mm (?°/7 
1917). Masafuera, about 1000 m above sea level, 
among ferns, 2 sps., 1. 12 mm (?/3 1917). Recorded 
by E. A. SMITH (1884) from Juan Fernandez. 
Fam. Tornatellinidae. 
A family Tornatellinidae was constituted by 
PILSBRY in I910, the characters of which were 
given in his Manual of 1915 (Vol. 23) and chiefly 
based on an anatomical examination of the Hawaiian 
genus Auricule/la, as well as on the presence of a 
parietal lamella in the aperture of the shell. The 
examination of the Easter Island Paczficella varia- 
bilis as well as the typical form of the genus Zorna- 
tellina from the Juan Fernandez has, however, made 
evident that their anatomical characters are wholly 
different from those given by PILSBRY as signi- 
ficant of the fam. Tornatellinidae. According to 
the rules of the zoological nomenclature, the family 
must be named after its type genus, and thus the 
name Tornatellinidae must be retained, but restricted 
to comprise, at first hand, the Juan Fernandez 
forms, and thus its diagnosis must be respectively 
altered. The Hawaiian genera Aurzculel/a and allies 

Fig. 14. Teeth from the radula of E 2 i : : 
Tornatellina bilamellata Anton, should certainly be comprised into a family of its 
X 750. own, Auriculellidae. 
Fig. 15. Genital organs of Torna- The definition of the fam. Tornatellinidae thus 
tellina bilamellata. Marking as 
in fig. 11; fv prostata gland. | reconstructed (and previously including also the 
