186 NATURAL HISTORY OP 



Hab. : Shetland Islands^ Moray Firth. Height '1 ia 



Animal unknown. 



*^ Plates in 4 imperfect cycles ; calyx circular. 

 Height equal to half the diameter." 



3. P. Pteropus, Gosse. " The Winged Cup Coral." 



Hab. : Moray Firth. Height '05 in. 



Animal unknown. 



" Plates in 4 imperfect cycles ; calyx circular ; ribs 

 very prominent, dilating into wings below." 



Genus III. Sphenotrochus, M. Edw. and Haime. 



Corallum simple, free, wedge-shaped. Columella a 

 single lamina, lobed or knobbed at the free surfaces 

 on the floor of the calyx. No palules. Plates in 3 

 cycles, 6 systems. liibs projecting. 



1 . S. Macandrewanus, M. Edwards. " The Smooth- 

 ribbed Wedge Coral." 



S. Andre wian us (M. Ed. and H.), Turbinolia mille- 

 tiana {Thompson, E. P. Wright, G. /., P. H. G., D. L.) 



Hab.: Off Scilly {Mc Andrew), Arra.nls\sind (Barlee). 

 Heiglit I in. 



Animal undescribed. 



" This is a beautiful little coral, shaped like a boy's 

 top, with 24 longitudinal ribs." — Landshorough. 



2. S. Wrightii, Gosse. "The Knotted Wedge 

 Coral." 



Hab. : Antrim coast. 



Animal unknown. 



Inserted by Mr. Gosse amongst the British fauna on 

 the authority of four specimens dredged amongst 

 shell- sand by Mr. Hyndman. It is exceedingly minute, 

 not exceeding 0"155 in. in height, and is not im- 

 probably a fossil species. 



