On Hypochlorin and its Production in the Plant. 317 



It appears to me not improbable that the comparative ex- 

 amination of a sufficient series of specimens would demonstrate 

 that this species and M. elegans are founded on half-grown 

 specimens. 



Tphis septemspinosa (Fabricius). 



Celebes, Macassar (a female). 



Arcania novemspinosa (White), var. aspera, n. 



A specimen (adult female) without definite locality differs 

 from White's type of novemspinosa in the British Museum 

 in the broader and much more closely granulated carapace, 

 and the relatively shorter spines of the posterior and postero- 

 lateral margins. White's specimen is a male. Although the 

 characters distinguishing the genera Iphis and Arcania are 

 scarcely of generic value, it may be convenient to retain the 

 former name for the Fabrician septemspinosa, to which it has 

 long been applied, and which differs somewhat more markedly 

 from the species of Arcania than these do among them- 

 selves. 



Dorippe sima } M.-Edw. 



Borneo (an adult female) . 



[To be continued.] 



XXXI. — On Hypochlorin and the Conditions of its Produc- 

 tion in the Plant. By Prof. Peingsheim*. 



In a previous communication \ I called attention to the exist- 

 ence in green vegetable cells of a body to which I gave the 

 name of " hypochlorin," on account of its close relationship 

 to chlorophyll. I now give some more detailed statements as 

 to its occurrence and microchemical characters, and append 

 thereto some further remarks upon the constitution of the 

 chlorophyll-bodies. 



So far as they regard hypochlorin, these statements relate 

 essentially to the behaviour of this body at high temperatures 

 and to the conditions of its production in the seedling plant. 

 "With regard to the chlorophyll-bodies, they will at the same 



* Translated by W. S. Dallas, F.L.S., from tbe ' Monatsbericbt der 

 Akademie der Wissenschaften zu Berlin,' November 1879, p. 860. 



t Monatsb. Berl. Akad. July 1879 ; translated in tbis Journal for 

 January 1880. 



Ann. & Mag. N. Hist, Ser. 5. Vol v. 22 



