On Ciipvessocrinns townseiidi Ki'm g, sp. 3'J7 



Tabaniis pulUpcnnis, Macq., Dipt. Exot., Suppl. i. p. IGO 

 (1814), woulil probably belong to this ;:(roup, being describe, I 

 as black, with three grey tonientosc stripes on tiie abdomen. 

 Legs black ; tibiie reddish. Antennae yellowish. 



Length 12 mm. 



From New Holland. 



The type is probably lost, and I have not seen any speci- 

 mens identifiable with this species. 



L. — The Devonian Orinoid Cupressocrinus townscndi 

 KUniy, sp. By F. A. Bather, M.A., D.Sc, K.R.S. 



(Published by permission of the Trustees of the British Museum.) 



Tuis species was established by Charles D. E. Kiinig as 

 No. 97 of" his ' Icones Eossilium sectiles ' (London, April 

 18.25) under the name Encrinus toivnsendi, upon a " speci- 

 men ex llispania allatum a Rev. Josepho ToMusend.''^ The 

 species was said to be " articulis bracbiorum angulatis et 

 maximis distiuctissima.^' 



The holotype, preserved in the British Museum [E. 5264], 

 consists of the five arms, from the articularia down almost 

 to their extremities, each composed of 13 or possibly 14 

 brachials. The extreme length of the specimen is 79'6 mm., 

 and its greatest diameter 57'7 mm. The specimen has, 

 however, been crushed, so that its diameter at right angles 

 to the preceding is only about 32 mm., a measurement which 

 cannot be taken precisely because the specimen has been cut 

 vertically in hull". The mean of the two measurements is 

 about 45 mm. The width of the articularia is about 23'o mm., 

 and this gives as the diameter of the cup about 37 mm. 



(fig- l). 



The brachials are ail remarkable for their great relative 

 Avidth ; the precise measurements are given later, in com- 

 parison Avith those of C. elongatus. There is a slightlv 

 rounded dorsal ridge, relatively more elevated in the distal 

 half of the arm than in the proximal ; the slope of the sides 

 from this to the abutting margins is outwardly convex in the 

 distal third, becomes gradually straight in the middle third, 

 and tends to become concave in the ptoximal third. The 

 greatest thickness (dorso-veutral ) of the arm is about 

 14 mm. ; the thickness of the proximal brachial is about 

 75 mm. In the thickness the cover-plates are not included. 



