46 
RECORDS OF THE AUSTRALIAN MUSEUM. 
through the coil of the penis the tentacle is retracted. Between 
the lower end of the uterus and the entrance of the spermatheca 
duct a bulb occurs like the swelling in a similar situation of 
certain Trochomorpha. The jaw (Fig. 14) is crescentic, with a 
median projection, and is closely transversely striated. The 
radula is formed like that of E. coma , Gray, as figured by 
Pilsbry,* * * § it consists of one hundred and thirty rows of 13:8:1:8:13. 
A near ally of this very distinct species is E. coma , Gray, of 
New Zealand, from which the Lord Howe Island form is separable 
by its concave spire, closer ribbing, and larger size. E. pinicola, 
Pfeiffer, from New Caledonia is also allied, but that has an elevated 
spire, weaker ribs, and is larger. This trio of kindred Endodonta 
supports a trio of equally related Placostylirf viz., P. bovinus , P. 
bivaricosus , and P. caledonicus , in linking together the faunas of 
these islands. 
This species is that recorded in my article on “The Land and 
Fresh-water Shells of Lord Howe Island, as CJtaropa textrix , 
Pfr., this being the identification of Mr. J. Brazier in the Memoir 
on Lord Howe Island. My suspicion of this determination was 
aroused by comparing the shell with the excellent figures of 
Pfeiffer, § but I was over ruled by the weight of Mr. Brazier’s 
authority. 
Under the name of C. textrix this shell has been widely dis- 
tributed. One of the recipients, Mr. John Ponsonby, of London, 
on comparing this with authentic C. textrix in the British Museum 
found it to be a different species. Not only am T indebted to him 
for this information, but he has also generously waived in ray 
favour his right of describing it. 
Now arises naturally the question what C. textrix really is. I 
am tempted to believe it identical with the small form of Endo- 
donta costulifera , Pfr. My reasons are, that a shell from Noumea 
which I identify as such closely corresponds with Pfeiffer’s account 
of textrix , that Macgillivray collected costulifera as well as textrix , 
and finally that textrix is unknown from Lord Howe Island 
which has been thoroughly searched for it. If this be so, then 
the name Endodonta textrix must pass into synonomy. 
The novelty is dedicated to Mrs. J. G. Waterhouse, an enthu- 
siastic and accomplished conchologist of Sydney, whose assistance 
in studying this and oilier forms I gratefully acknowledge. 
* Tryon & Pilsbry— Manual Conchology (2) ix., pi. ix., f. 23. 
f Etheridge : “ A much thickened variety of Bulimus bivaricosus from 
Lord Howe Island.”— Kec. Aust. Mus. i., 1891, p. 130. 
t Bee. Aust. Mus., i., 1891, p. 137. 
§ Conchylien Cabinet (2) Helicea, pi. clxii., if. 14-17. 
