Mr. H. J. Carter on Peridinium cypripedium. 399 



Body olivaceous ; head fulvous ; antennae black, tipped with 

 fulvous. 



Underside — central band extending to the costa, but inter- 

 rupted near it by the nervures, which are fulvous, otherwise as 

 above; base silvery, crossed by two pinkish bands margined 

 with brick-red, the outer one lying close to the central band, 

 except at the costa of the front wings j base of hind and cell of 

 front wings crossed by an oblique brick-red dash : front wings 

 with a subapical patch, creamy above, white and very narrow 

 below, interrupted by the nervures ; apex fulvous ; the remainder 

 of the apical half of the front wings pale brown, interrupted by 

 the nervures, and varied with white lunules between the sub- 

 costal and second and third median nervules : apical half of 

 hind wings violaceous outwardly, pale brown inwardly, the 

 brown portion crossed longitudinally by a brick-red fascia; a 

 lunulate, submarginal, fulvous line along the hind margin, an 

 orange spot at the anal angle, and a small black lunule near it. 



Body dirty cream-coloured. 



Expanse of wings 2 inches. 



Hab. Honduras. 



Closely allied to Heterochroa Iphicla, Linn., differing from it 

 above in having the central band produced above the first me- 

 dian nervule, the subapical orange patch much more angular, 

 and the submarginal bauds more interrupted ; below, the basal 

 bands are wider apart, the white submarginal lunules are fewer 

 in number, the submarginal bands less curved, more regular, 

 and not so much interrupted, the anal orange patch on the hind 

 wing is much nearer to the margin, and the central band much 

 more regular in outline. 



XLIV. — Remarks on Prof. H\J. Clark's Peridinium cypripedium. 

 By H. J. Carter, F.R.S. &c. 



In the last two Numbers of the 'Annals' (viz. 94 and 95) are 

 contained ' the description and illustrations of an animalcule 

 called by Professor Clark Peridinium cypripedium ; and no mi- 

 croscopical inquirer into such organisms can have read it, in 

 connexion with his figures, without admiration and hope of 

 future contributions of the kind from the same author. 



Prof. Clark, however, not unlike those who have preceded him 

 in such investigations, has confounded two kinds of infusoria, 

 which, although extremely alike, nevertheless belong, one to the 

 animal, and the other to the vegetable side of the imaginary 

 line which divides the two great kingdoms of organized beings. 

 Nor would this confusion have been made had the authors of 



