EEPOET ON THE GASTEROPODA. 171 



9. Trophon scolopax, Watson (PL X. fig. 12\ 



Trophon scolopax, Watson, Prelim. Eeport, pt. 14, Journ. Linn. Soc. Lond., vol. xvi. p. 392. 



Station 150. February 2, 1874. Lat. 52° 4' S., long. 71° 22' E. Between Ker- 

 guelen and Heard Islands. 150 fathoms. Coarse gravel. Bottom temperature 35-2°. 



Shell. — Thin, chalkily porcellanous white, club-shaped, with a low, scalar, small- 

 pointed spire, high-shouldered, right-angled whorls on which are some small prickles, a 

 tumid body, and a long, thin, straight snout. Sculpture: Longitudinals — the whorls 

 are crossed by feeble, procumbent, almost appressed lamellae, between which are a few 

 rounded lines of growth. Spirals— near the top of each whorl, but separated from the 

 suture by a broad, rounded, but hardly declining shoulder, is a rectangular keel ; below 

 this, and widely apart, there are on the body-whorl three feeble rounded threads ; on 

 these, as on the keel, the longitudinal lamellae rise into small, blunt, vaulted scales. The 

 whole surface of the shell is covered with submicroscopic scratches. Colour porcellanous 

 under a thin chalky surface. Apex small, but too much eroded for description. Whorls 

 6 to 7 (?) roundly tabulated above, with a sub-rectangular keel, below which they are 

 cylindrical ; the last is a little tumid, rounded and rapidly contracted on the base, 

 which is produced into a long, thin, straight snout. Suture almost rectangular. Mouth 

 almost round above, and entirely without angles, funnel-shaped below, where it is drawn 

 out into the long narrow canal. Outer lip sharp, thin, well arched, direct till near the 

 canal, where it is very patulous. Inner lip concave above, and then quite straight to 

 the point of the shell ; a very thin and narrow glaze covers the body to the beginning of 

 the canal. Operculum small, thin, yellow, oval, with a terminal but slightly inturned 

 nucleus. H. 0-95 in. B. 0-42. Penultimate whorl, height 0-12. Mouth, height 0-7, 

 breadth 0'2. 



I have named this species from some likeness it has to a woodcock's head. It resembles 

 Trophon goodridgii, Forbes, but has the body smaller and squarer, the base more contracted, the 

 canal much longer and finer, and the whorls are tabulated below the suture. It is larger than 

 Trophon septus, the snout is straighter, and the whole ornamentation is different. 



Family Puepoeacea, Lamarck, 1809. 



Genera. 1. Purpura, Brug. 2. Rapana, Schum. 3. Vitularia, Swainson. 

 1. Purpura, Bruguiere, 1789. 



Species. 



1. Purpura (Crania) amygdala, Kiener. 3. Purpura (Tlialessa) pica, Elainville. 



2. Purpura (Tlialessa) alveolata, Reeve. 4. Purpura (Stramonita) fasciata, Reeve. 



5. Purpura (Polytropa) scobina, Q. and G. 



