14 



February 10, 1852. 

 William Yarrell, Esq., in the Chair. 



The Chairman exhibited a specimen of the Echiodon Drummondii 

 of Mr. Thompson of Belfast, a very rare species of fish, of which 

 only one example has been previously known. Dr. Drummond ob- 

 tained the first specimen on the beach at Camclough, near Glenarm 

 in the county of Antrim, in June 1836, cast ashore probably by the 

 tide of the preceding night, after a strong easterly wind. The spe- 

 cies was considered new to ichthyology, and was first described and 

 figured in the Transactions of this Society by Mr. Thompson, vol. ii. 

 p. 207. pi. 38. Nothing that has transpired since the publication 

 of Mr. Thompson's paper has induced a belief that this species had 

 been previously knovra. 



The specimen now exhibited was most liberally sent to Mr. Yarrell 

 by Mrs. Blackburn of Valencia, in the county of Kerry, who was per- 

 fectly aware of the characters, the rarity, and the value of the fish. 

 It was found by her daughter Helen on the shore of the harbour of 

 Valencia, after a violent storm from the west, which occurred there 

 on the 23rd of January last. 



This example is smaller than the one noticed by Mr. Thompson, 

 measuring only 8 inches in length, but quite perfect. Mr. Thomp- 

 son's example measured 12 inches (Brit. Fishes, vol. ii. p. 417). 



The following papers were then read : — 



I. On Cystosoma Saundersii, of Curtis and Westwood. 

 By a. W. Scott, M.A. 



(Aimulosa, PI. XXI.) 



Head small ; sides of the thorax running in a straight line from 

 the head to an acute angle behind ; abdomen of the male deeply con- 

 stricted immediately behind first segment ; second joint of the an- 

 tennae distinct from the third, and not forming with it the tapering 

 setae which terminates them ; upper wings destitute of a nervure 

 running parallel to their inner margin. 



The male (figs. 1 and 2) measures, in expanse of wings, nearly 

 4^ inches ; the female (fig. 3) 3f inches. 



The antennae (fig. 4, magnified) in both sexes are very short, 

 7-jointed, the two basal joints strong and thick, the remainder much 

 finer and gradually terminating in a point. 



The legs, anterior pair (fig. 5), with two minute spurs at the apex 

 of tibia ; the femora are robust, with their lower edges serrated ; the 

 second (fig. 6) and posterior (fig. 7) pairs longer than the anterior, 

 with minute spurs on the ends of the tibiae and setae, placed in pairs 

 and evenly distributed along the inner edge ; the femora of these are 

 slender and not serrated. The tarsi of all the legs 3-jointed, and 

 terminated by two strongish claws, and fringed underneath by setae. 



