407 
circiter 22 convexiusculis, sulco peripherico impresso cireum- 
seriptis ; lamina marginalis bipartita, annulo interno angusto 
saturate castaneo nitido, externo radiatim dense lirato, liris 
in cilia minuta triangularia euntibus. 
Diam. 9 mm., alt. 7 mm. 
This operculum differs chiefly from that of var. a by its great con- 
vexity round the centre. 
The specimen in the collection of Mr. Cuming is marked ‘“ Medi- 
terranean ;” but in the interior were found rudiments of an Elenchus, 
a genus only found in Australia. It is so closely allied to the pre- 
ceding variety, that I do not doubt it is the same species, although 
the Mediterranean often affords species closely allied to Australian. 
Var. 0. FERRUGINEA, linea castanea infra rimali. 
T. gracilis, obsolete longitudinaliter lirulata ; saturate ferruginea 
aperturam versus albescens. 
Long. 104 cm., diam. apert. 14 mm. 
This and the following must be regarded as young specimens, al- 
though the diameter of the whorls is less than that of the pre- 
ceding. 
Hab, Australia (coll. Cuming.). 
Var. 6*. Precedenti simillima sed spira turbinata. 
South Australia (coll. Cumingii), specimen unicum. 
Sect. B. Rima simplex ; apex plerumque haliotoideus ; primus 
Jfissuram nullam habet. 
7. TENaGopus (S1L1quaRius) oBTusus, Schum. 1817. 
Stliquaria anguina, Philippi, Enumeratio, i. p. 173, t. 9.f. 24; M. 
Gray, Figures, i. pl. 58. f. 1 (copy). 
Tenagodus anguinus;Adams, Genera (copy). 
Serpula anguina, Born, Index, p. 457; Born, Testacea, p. 440, 
t.18.f.15; Shaw, Miscel. (copy from Born). 
Anguinaria obtusa, Schum. Essai, p. 262. 
§. Serpula annularis, Dillwyn, 1817, p. 1081. no. 29; Wood, 
Index, f. 28 (copy); Buonanni, i. 20. no. C; Scilla, de Corporibus, 
t. 12. f. 3, p. 55 (copy) ; Mart. Conch. Cab. i. t. 2. f. 16 (copy). 
y. Siliquaria anguina, Sow. Genera (cum juvenili) ; Chenu, Illustr. 
pl. 1. f. 1 2, 9, v, 7, 6. 
I have not seen any authentic specimen from the Mediterranean of 
this species. I do not know which name has priority. Schumacher’s 
« Essai’ is dated March 1, 1817, and the first volume of Dillwyn 
Jan. 1, 1817, but the second volume has no date. I have not referred 
Montfort’s Siliquarius angustus to this species, which has a simple 
slit, while Montfort indicates the following characters :—‘‘ Une 
fente étroite, plus ou moins dentelée, peut-étre méme dans quelques 
espéces indiquée par une file sériale de trous. Amboine, d’ot viennent 
ceux que !’on voit dans nos collections.” 
