THE ANNALS 



MAGAZINE OF NATURAL HISTORY. 



[THIRD SERIES.] 

 No. 29. MAY 1860. 



XXXVII. — Oa the Genus Notopterophorus of Costa. 

 By Rudolph Leuckart*. 



[With a Plate.] 



During my residence in Nice in 1853_, I several times found 

 amongst other parasites f, in the cloacal space and respiratory 

 cavity of Phallusia mamillaris, a parasitic Crustacean of very 

 peculiar appearance, such as I liad never previously met with. 

 I regarded it as new, and gave it the name of Calathopte- 

 rus, on account of the basket-like structure of the wing-like 

 processes attached to the back of the thoracic segments; and, 

 in compliment to my honoured friend Verany, who took the 

 greatest interest in this Crustacean, I called it C. Veranyi. 



On my return journey, I was enabled, at Turin, by the kind- 

 ness of Professor de' Filippi, to inspect Costa's ' Fauna del Regno 

 di Napoli,' a work very little known in Germany ; and here, 

 after the first few leaves, I met with plate 2 of the Entomo- 

 straca, containing a figure of my parasite, or of a very similar 

 form. The text and explanation of the plates were wanting, at 

 least for the plate in question ; I therefore remained in a state 

 of uncertainty as to the name of my animal. 



This uncertainty has only been partially removed since. I 

 succeeded, however, in discovering a second copy of Costa's 

 work in the library of Senator von Heyden of Frankfort ; but in 

 this also the text and explanation of the plates were wanting. 



* Translated from Wiegmann's Arcbiv, IS.'jy, p. 241, by W. S. Dallas 

 F.L.S. 



t Especially Amphipoda and Kemertina. Once, also, a small Cecropifonn 

 parasite (I line in length), with long tufts of bristles between the legs, was 

 met with. The margins of the tlioracic segments were elongated, especially 

 that of the last segment, which formed a regular roof destined for the 

 reception of the cylindrical abdomen and the two rose-coloured cg-sacs. 



Ann. &^M(i(/.N. Hist. Ser.3. Vol. v. 24 



