SCALA ((JVROSCAI.A) CANIIAMI. 553 



Sub-(jrnus GYROSCALA, do Hoxivy, 1887. 

 Scala (Gyroscala) Canhami, s}). nov. Plate XLVII, fig. 23. 



Specific Character,^. — Shell coarse and solid, turroted, iiii[)ert"oi-ate ; whorls 

 convex, not disjoined; ornamented with about 12 strong longitudinal costse, 

 slightly oblique, lamelliforni and reflexed ; base of the last whorl with a conspicuous 

 and wide basal disc ; suture deep ; s})ire slender, elongate, regularly diminishing 

 in size upwards; month subovate; outer lip thickened by the labial rib; peri- 

 stome continuous ; base narrowed ; spiral sculpture inconspicuous or wanting. 



Diviensions : L. 30 nun. B. 10 mm. 



Distribution. — Not recorded living. 



Fossil : Newbournian Crag : Foxhall. 



Remarlcs. — The shell now figured belongs to the York Museum, where it has 

 remained for some years undescribed. It bears Brocchi's specific name of jyseado- 

 scalaris, but has, it seems to me, but a slight resemblance to the figures of tliat 

 species, either of its original describer or of subse(juent writers. M. de Boury, to 

 whom I submitted a photograph, believed it to be new. I dedicate it, therefore, to 

 the memory of the Rev. H. Canliam, who for many years resided at Waldringfield 

 in the centre of the Newbournian district, and was a zealous collector of Crag fossils. 



The sub-generic term Gi/roscala was proposed by M. de Boury for a division of 

 the Seal idee, of which the recent Mediterranean form S. commutata was taken as 

 the type. The special characteristics of this group are fvdly described by MM. 

 Cossmann and himself in the works before alluded to. 



Scala (Gyroscala) inedita, sp. nov. Plate XLVII, fig. 23. 



Specific Characters. — Shell turreted, elongato-conical ; whorls decidedly convex, 

 regularly diminishing upwards to a blunt apex ; ornamented by fine, rather 

 distant ribs, placed somewhat obliquely ; suture deep ; basal disc well marked, 

 multicostate ; mouth subcircular. 



Diinensioiis. — (Of imperfect specimen) L. 8 mm. B. 4 mm. 



Distribution. — Not recorded living. 



Fossil : Sudbourn Church-walks. 



Uemarhs. — The imperfect fossil figured under this name belongs to the York 

 Museum where it is also labelled S. pseudo-scalar is. It differs materially, however, 

 from that species, and M. de Boury, to whom I submitted a photograph of it, 

 considered it a new and undescribed form. 



Scala (Gyroscala) pseudo-Turtoni (S. V. Wood). Plate XLIX, fig. 2. 



1870. Scalaria psendo-scalaris, A. Bell, Ami. Mag. Nat. Hist. [4], vol. vi, p. 216. 



1872. Scalaria Turtoni, var. pseudo-Turtoni, S. V. Wood, Mon. Crag Moll., 1st Suppl., pt. i, p. 58, 



pi. iv, fig. 5. 

 1872. Scalaria pseudo-scalaris, A. and E. Bell, Proc. Geol. Assoc, vol. ii, p. 216. 



