290 DENTALIUir. 



Subemarg-inula (Tugalia) parmophoidea, 



Quoy and Gaimard. 



1834. Emargiiuda parmophoidea, Quoy and Gaimard, Voy. de I'Astrolabe, 



Zool. t. iii. p. 325, pi. Ixviii. figs. 15, 16. 

 1851. TucjaWa parmophoroidea, A. Adams, Proc. Zool. Soc. p. 89. 

 1873. TugaJi elegans, Hutton, Cat. Tert. Moll. N.Z. p. 16. 

 1880. Tugalia parmophoidea, Hutton, Man. N.Z. Moll. p. 106. 

 1891. Subemarginula {Tugalia) parmophoidea, Pilsbry, Tryon's Manual of 



Conchology, vol. sii. p. 285, pi. xliii. figs. 78-80. 

 1893. Subemarginula parmophoida, Hutton, Linn. Soc. N.S.W., Macleay 



Mem. Vol. p. 72. 



Shell oval, rounded at the ends, apex near the margin ; close 

 radiating and transverse ribbings of about equal size, though 

 occasional smaller ones occur between, gi-anulated and cancellated ; 

 margin arcuate, denticulate; "fissure" a mere sinuation of the 

 margin, no internal sulcus. 



Dimensions. — Height 6*5 mm. ; maximum breadth of base 

 19 mm.; minimum breadth 12 mm. 



Form, and Loc. — Pliocene: Shakespeare Cliff, JS^ew Zealand. 



G. 9590. Two examples of the adult. Sir James Hector Coll. 



Class SCAPHOPODA. 



Family DENTALIID^. 



Genus DENTALIUM, Linna;us. 



[Syst. Nat. ed. 10, 1758, p. 785.] 



Enlalis, Gray, Proc. Zool. Soc. 1847, p. 158 ; non Defrance, 



1819, nee G. B. Sowerby, 1839. 

 Entaliopsis, ITewton and Harris, Proc. Malac. Soc. Lond. vol. i. 



1894, p. 66. 



It has been customary for many years past for authors to 

 regard as genera and subgenera forms having the general characters 

 of Dentaltum (^sensu stricto), but differing from it in possessing 

 peculiar phenomena at the posterior orifice, and in the presence 

 or absence of sculpture externally. Thus Entalis, Gray, was 



