MOLLU.SCA — IIKI)I-EY, 



381 



Troph'iti ansli'<iH'<, Tow. Wo) Is, Proc. Itoy. Soc. T.is., IS?") (1876), 



p. 136. 

 Trophoii rtxswt, Ten. Wools, Proc. Hoy. Soo. Tas., ISTO ('1877), 



p. 132. 

 Trophon fi(/uamosstsiina, Tvmi. AVooils, Proc. Roy. Soc. Tas., 1878 



(]879j, p. 33. 

 Perlst'imia paivai, Tate, Trans. Roy. Soc. S.A., x., L'^SS, jo. lol. 



Stations 28, 33, 55. 



Considerable variation occurs in this si^eeies. In the typical 

 form the shell is solid, short and broad, angled at the shoulder 

 by eight well developed longitudinal ribs, the aperture purple or 

 white with a row of nodules within ; it lives on rocks at low 

 water. Another aspect of the species is a long, slender, thin 

 shell, the longitudinal ribs evanescent, and aperture white without 

 nodules ; this one inhabits mud flats. Troplion 8(juainossisiniri 

 is an extreme form from deep water. 



From 22 fathoms off the Manning River; 24-27 fathoms in the 

 Newcastle Bight; and 11-15 fathoms off the Crookhaven River. 



TYPHIS, Monfj'ort. 



TYPHIS SYRINGIANUS, sp. nov. 



(Fig. 94.) 



Stations 13, 27, 28, 35, 49, 57. 



Shell small, rather solid, ovate. Whorls five, shelved at the 

 shoulder. Colour pale brown. Sculpture : 

 altogether twenty double varices, each com- 

 posed of two evenl}'- spaced elevated folds 

 which fuse at the base, and, uniting in an 

 arch above, project a short, backwardly 

 bent pipe, at the shoulder. In the hollow 

 between each double varix occurs the scar 

 of a former aperture. Fine growth lines 

 extend ovei- the whole surface. Protoconch 

 elevated, smooth, of a whorl and a half. 

 Aperture oval, peristome continuous, pro- 

 duced within the varix ; canal short, hardly 

 curved. Length, 9 ; breadth, 55 mm. 



The species here described has been 

 mistaken by Tenison Woods,* and several 

 subsequent writers, for the South African 

 T. arcuatus, Hinds. The latter is describedf 

 as five and one-half lines long, which dimen- 

 sion considerably exceeds the Australian shell. 



Fiff. 94. 



* Ten. Woods— Proc. Roy. Soc. Tas., 187G (1877) 

 t Hinds— Proc. Zool. Soc, 1843, p. 19. 



p. 132. 



