PHILINE. 449 



Turton) gave it the name of >S^. catenatus-, it is the 

 BuUcea granulosa of Sars^ partly the BuUcea angustata 

 of Philippi, Bullcea catena and BuUcea catenulifera of 

 - Macgillivray^ and Bulla dilatata of S. Wood. 



P. lima ( Utriculus Linia) of Brown is stated by him 

 to have been found by Mr. Stewart Kerr at Greenock ; 

 and it would therefore be a glacial fossil of the Clyde 

 beds. It is allied to P. scabra, but difters from that 

 species in having a smaller and compact crown^ a more 

 produced spire, and a less patulous mouth. It is the 

 Bulla lineolata of Couthouy, and probably the Bullata 

 punctata of Moller (not of Clark), its existing distribution 

 being confined to the eastern coasts of North America 

 and to Greenland. 



2. P. cate'na*, Montagu. 



Bulla catena, Mont. Test. Br. (i.) p. 215, t. 7. f. 7. P. catena, R & H. 

 iii. p. 645, pi. cxiv. e. f. 6, 7, and (animal) pi. UU. f. 4, as Bulhea catena. 



Body on the upper part yellowish- white ; the shield or 

 anterior portion, and the lateral lobes caused by the reflexion 

 of the foot on the Ijaek, are sprinkled with close-set very 

 minute reddish-brown points ; the posterior part of the body 

 is divided into one or two digitations. (Clark.) 



Shell oval, compressed and expanding outwards, of delicate 

 but not fragile texture, semi transparent and glossy : scul]}ture, 

 numerous and close-set spiral rows of minute links, arranged 

 in a chain-like fashion, which vary in shape from roundish- 

 oval to oblong, besides occasional intermediate lines as in 

 P. scahra ; the edge of the mouth (especially at its base and 

 on the upper part of the outer lip) is finely scalloped by the 

 continuation of the spiral sculpture: colour as in the last species : 

 spire extremely small, but prominent: whorls 2-3, similar 

 (except in size) to those in the last species : suture narrow, 

 deep, and channelled : nwuth equalling about three-fourths of 

 the circumference of the shell, broadly oval, contracted above 

 by the periphery, with a bluntly rounded (or almost truncated) 



* From its chain-like sculpture. 



