MISS DONALD : ON TURRITELLID.E AND MURCHISONIIDiE. 53 



There is but one example of this species in the British Museum 

 (Natural History), and it is a dead shell of a creamy-white colour. 

 It resembles Turritella ausfralis, Lam., in form, but is less robust 

 and has an additional crenulated keel ; the sinus also is apparently 

 deeper. 



3. Turritella (Colpospira) Godeffroyana, n.sp. PI. V, Figs. 6-6a. 



Shell turrcted, composed of more than eleven gradually increasing, 

 convex whorls. Colour pale amber. Protoconch unknown. Ornamen- 

 tation consisting of three strong spiral keels, with an additional one 

 below on the body-whorl, and numerous lines between the keels and 

 on the base. The second keel is situated slightly below the middle 

 of the whorl, and is much the strongest and most prominent, 

 rendering the whorls somewhat angular. Sutures deep. Aperture 

 Sub-quadrangular ; inner lip spread on the body- whorl. Columella 

 nearly straight. 



Length 17, width 6h mm. 



Dredged by Captain Witt in Bass Strait. 



There is but one of this species in the Godeffroy Collection at the 

 Hamburg Museum. The outer lip is not well preserved, and there 

 are but slight indications of ■ a sinus between the uppermost and 

 the third keel, its greatest depth occupying the position of the 

 strongest keel. Quite near the broken edge there are a few lines 

 which appear to indicate the bottom of a sinus, and further back 

 there is evidence of a break which has been mended by the animal, 

 the course of which makes a line similar to the contour of the sinus 

 on some of the other shells of this group ; there is also another line 

 behind the break running in the same direction. This shell comes 

 very -near the description given by Petterd of T. Higginsi, but as 

 there is no figure of that species, and only a very brief description, 

 a satisfactory comparison cannot be made. It is evidently larger, 

 measuring 30mm. in length; the colour is reddish brown, instead of 

 yellowish amber ; only three spiral keels are mentioned, the fourth 

 on the body- whorl not being referred to, nor is the greater prominence 

 of the second keel observed. C. Godeffroy ana also somewhat resembles 

 C. Smithiana, but the shell is larger, the whorls increase more 

 rapidly, and the ornamentation is different. 



4. Turritella (Colpospira ?) quadrata, n.sp. PI. V, Figs. 8-8#. 



Shell pyramidal, composed of thirteen or fourteen whorls. 

 Protoconch small, white, consisting of two smooth, convex whorls. The 

 earlier six or seven whorls are but slightly convex, and flattened, the 

 later ones are strongly ridged above aud below the sutures, the space 

 between the ridges being flat or slightly concave. The ornamentation 

 consists of numerous strong spiral threads. The colour is light 

 yellow flamed with brown, with deeper spots on the ridges. Aperture 

 sub-quadrangular, rather longer than wide, outer lip thin, retreating 

 and forming a broad but shallow sinus, advancing again and curving 

 round to the base of the pillar, where it is slightly channelled. 



