PIIILINE.— Plate I. 



riorly subquadrate, elevated ; penultimate whorl 



elongated. 

 Adams. Pro. Zool. Sec. 

 Eab. Port Lincoln, &c., Australia. 



It is difficult, if not impossible, to distinguish the 

 variable forms of this Australian species from Ph. 

 aperta, some of them taking the straighter character of 

 Philippi's Ph. Planciana. The specimens, however, 

 attain a larger size than either of the above mentioned 

 species, and it is probable, from the locality, that the 

 animal is different. 



Species 5. (Fig. a, b, Mus. Sowerby.) 

 PniLiNE TEirNCATissiMA. Ph. tcstd Iri'vi, subquadrotd, 

 siihcompressd, tenui. diaphand, liiieis conceiitricis 



opacis distantibiis, antice angidatis notatd ; aperturd 

 antice latissiind, late tmncatd ; labia extemo angii- 

 lato. 

 TuE \-EP,T THDNCATE PniLKE. Shell short, subquad- 

 rate, subcompressed, thin, diaphanous, marked 

 with distant concentric opaque lines which are 

 angular in front ; aperture very wide in front, 

 widely truncated ; outer lip angular. 



SOWERBT. 



Ilah. 



This transparent little species is remarkable for the 

 truncated character of the widened anterior, producing 

 an angle on the lower part of the outer lip ; which is 

 beautifully indicated by the opaque white lines deli- 

 neating the edges of former outer lips. 



