:J:5:2 KIUTIMI KNTOMOSTHAC \. 



From a careful examination of specimen> sent me by 

 Mr. Thompson, <& Anomcdocera Pafcrxwiii from Ireland. 

 and fri'i/fi't'x *j)/r,nH<l//x from Scotland, from an exami- 

 nation of the specimens of Irenes m sent by Mr. Goodsir 

 himself to the British Museum, and from the figures of 

 the two given by Mr. Templeton and Mr. Goodsir, I have 

 no doubt they arc identically the same. The tubular 

 organ in which the eye is situated in Irena?us, and which 

 forms, according to Mr. Goodsir, the chief generic cha- 

 racter, is merely the peduncle upon which the eye is 

 placed, and which is well described in Anomalocera, by 

 Mr. Templeton. Mr. Goodsir's description of Irenaens 

 seems to have been taken from a male specimen. He 

 describes the little animal, when alive, as of a \rry bril- 

 liant appearance. "The whole animal," he says, " gives 

 forth a kind of luminous appearance, which is apparently 

 caused by the splendid metallic colours with which it is 

 adorned. The prevailing colours are sapphirinc and 

 emerald." 



" The colour of the animal," says Mr. Paterson, as 

 quoted by Mr. Templeton, " is a bright green, mottled 

 with darker shading* ; the green colour is very fugacious, 

 and observable only in recent specimens .... The tir>i 

 time," he continues, " on which 1 took any of these, was 

 in crossing the ferry at the mouth of Lame Lough, 

 county Antrim, in the evening of the 2d of May. They 

 were so numerous, that in the space of fifteen minutes 

 above three hundred were taken. Though kept in a 

 glass jar of sea-water they all died during the night, and 

 were almost colourless next morning .... They swim 

 with a livelv and constant motion, and jerk themselves 



i/ i 



out of the way when pursued. They form a portion of 

 the food of a tentaculated Beroc." (pp. 39, 40.) 



j. Mouth of Larnc Lough, county of Antrim, 

 Mr. Templeton, \V. Thompson, Ks<j. (.l/inm/i/urcrtt} ; 

 l ; rithof Forth, Mr. d.udsir: l\v les of Bute, AV. Thompson, 

 Ks<|. (lrf,t,rnx} ; llrit. Mus. 



