353 



S. African types and the S. Indian specimens compared by me. Section, 

 sculpture, involution, constriction, sutural line, are quite the same in all. 

 The body-chamber which you have sent is distinguished by its very deep 

 constriction (quite similar, deep constrictions are visible in S. African 

 specimens although they are not figured) and by its narrow mouth." 



H. Gardeni is now known to occur in the Upper Cretaceous rocks of 

 Japan. It had previously been collected from rocks of the same age in 

 Natal, Southern India, and Vancouver Island. 



Gasteropoda. 

 Cyliciina costata, Gabb. 



Cidichna costata, Gabb. 18(54. Geol. Surv. Calif., Palieont., vol. i, p. 143, pi. 21, fig. 

 107. 



In 1901, a few specimens that are probably referable to this species 

 were collected at Brennan Creek, near Wellington, by the Rev. G. W. 

 Taylor, and from the roof of the coal at the New Vancouver Coal Go's, 

 mine, Nanaimo, by Mr. Harvey. These speciujetis may be described as 

 follows : 



Shell small, subcylindrical, narrowly elongated and nearly twice as 

 long as broad, when full grown : spire sunk, its position indicated by a 

 deep, narrow pit ; aperture rather narrow posteriorly, wider anteriorly ; 

 posterior end of the outer lip projecting slightly beyond that of the pre- 

 vious volution and very narrowly rounded at its junction with the 

 columellar lip. 



Test thin, surface smooth and polished, but encircled with numerous 

 revolving incised lines or minute linear spiral grooves, which ai'e usually 

 much narrower than the spaces between them. Under a rather powerful 

 simple lens, each of these incised lines is seen to consist of a single, 

 regular row of minute punctures, like those represented by figure 8b, on 

 Plate 16, of the second part of this volume, and the whole of the n st of 

 the surface to be still more minutely and longitudinally striated. 



Approximate dimensions of the largest specimen that the writer has 

 seen : maximum length, not quite nine millimetres ; greatest width, five 

 mm. ' 



These specimens have the same kind of sculpture as those referred to 

 on page 132 of the second part of this volume, with a query, as possibly 

 a variety of Bulla Hornii, Gabb, under the name Haminea Hornii,'h\xt 

 the former are much more narrowly elongated. 



