140 FASCIOLAEIA. 



Dimensions. — Length 36 mm.; breadth 17 mm.; length of 

 aperture 13 mm.; length of canal 11 mm. 



Form, and Loc. — Eocene : Victoria. 



48052. Two specimens ; from Schnapper Point. Purchased. 



G. 5525. An example in which the spiral lines are much 

 reduced in size ; from Muddy Creek. Purchased. 



G. 9438. Specimens having the rugose costse more spinose ; 

 from Muddy Creek. Purchased. 



Fasciolaria cryptoploca, Tate. 



1888. Fasciolaria cryptoploca, Tate, Trans. Roy. Soe. South Aust. toI. x. 



p. 151, pi. viii. flg. 2. 

 1893. Fasciolaria cryptoploca, Tate and Dennant, id. vol. svii. pt. 1, p. 219. 



Shell fusiform ; spire moderately elevated ; protoconch similar 

 to that of F. cristata and F. rugata ; earlier whorls flatly 

 convex, and graduating to tabulated in the two anterior volutions. 

 Professor Tate describes the ornament as follows: — "Anterior 

 whorls with nine plications to each whorl ; plicae narrowly 

 rounded, elevated into sharpish conical tubercles at the shoulder, 

 separated by wide, shallow, and open furrows, dying out on the 

 posterior slope and on the base of the body-whorl ; the ornament 

 consists of acute spiral ridges, alternately large and small (about 

 twenty on the penultimate whorl), separated by rather wider angular 

 furrows, roughened by transverse lamellas of growth." Aperture 

 ovate, contracted both in front and behind ; outer margin crenu- 

 lated, oblique, and having closely-set, interrupted lirse within ; 

 inner margin detached from the columella in adult specimens, with 

 a prominent fold at the posterior extremity near the suture, and 

 a very oblique plication bordering the entrance to the canal from 

 within, with two or three smaller ones behind ; the detached inner 

 border is continued to the extremity of the long, twisted, anterior 

 canal, creating a pseudo-umbilicus. 



This species has considerable analogy with F. rngata, and, 

 indeed, they are barely worthy of separation specifically. The 

 latter, however, has fewer and more rapidly enlarging whorls, 

 which are about equally sloping from the periphery to the suture. 



Dimensions. — Length 53 mm.; breadth 24 mm.; length of aper- 

 ture 18 mm. ; length of canal 16 mm. (anterior extremity broken oif). 



