1624 THE VOYAGE OF H.M.S. CHALLENGE!*. 



veramente microscopico. Le antenne inferiori per6 al di la del peduncolo corrono capillari, 

 mollissime, inarticolate. II disegno che ne offro te ne mostrera chiaro il fatto. Eccoti 

 adunque una Fronima con due paja di lunghe, e gracilissime antenne." 



De Natale fancies that all specimens of Phronima hitherto observed may have had the antenna 

 mutilated. Nature, he says, rarely introduces one modification of an animal without 

 correlated variations. "Possibile che conservati i caratteri tutti d'una Fronima,la natura avesse 

 voluto innestarvi due paja di corna senz' altro 1 Io ci stento a crederlo, e inclino troppo a 

 credere che le Fronime hanno sempre due paja di gracilissime antenne, che la Bivonia culicina 

 di Cocco e una Fronima. Terrai come ti aggrada questa mia maniera di pensare, il fatto e 

 che io tengo presso di me una Fronima con 2 paja d'antenne gracilissime. La specie che te 

 ne d6, la chiamo Coccoi ad onore del suo scopritore ; essa e una specie distinta. Picciolina 

 di 3 a 4 linee al piii, cristallina con punti aranciati disseminati, distinguesi dalla Phronima 

 sede?itaria perche non ha come questa uu sol dente sul taglio interno del dito della mano 

 didattila, ma ne ha 5 e cospicui, e non presenta come questa l'antipenultimo articolo dei 

 piedi delle due prime paja prolungato sotto del gancetto. Non e la Ph. Atlanfica che ha 

 due denti al gancetto della chela. Sara la Ph. sedentaria di Eisso ? Ma quest' ultima e 

 cosl mal nota, tanto informe il disegno, che non se ne puo tener conto. Abbiti adunque la 



" Phr. Coccoi (Nobis). Hyalina, pundis aurantiacis adspersa; dentibus quinque conspicuis in. 

 maim didactyla." 



The figure and the description of Phronima coccoi alike make it clear that de Natale had obtained 

 the male of some species of Phronima, of what species it might not be easy to decide even if 

 we had his specimen. His Orattrina pulchella beyond doubt belongs to the genus Vibilia, 

 and is probably a synonym of Vibilia jeangerardii, Lucas, with which it agrees at any rate 

 so far as the antennae and the colour are concerned. It is pretty evident from the figures that 

 de Natale's account of the gnathopods was based on insufficient examination, and the 

 trilobation which he ascribes to the body was most likely due to accidental wrinkling of 

 his specimen. It may be, however, noticed that Lucas says of his species, " le cinquieme 

 segment abdominal [in the Latin by mistake septimo segmento abdominis] parait comme 

 triloba en dessus. Erpetoramphiis costs comes perhaps as near to Oxycephalic similis, 

 Claus, from Messina, as to any other of the hitherto described Oxycephalidre. It is rather 

 singular that de Natale should not have noticed its affinity to his own recently described 

 Ornith oramphus. 



Boeck's account of this paper is, that its author describes " two Hyperids, namely, Orattrino 

 pulchella, Natali, which seems to be a Vibilia, and Reptorramphus Costs, which looks like 

 a Platyclieles. His description of them is very short, and the figures are inadequate." 

 Why Boeck changes Erpetwamphus into Beptorramphw is not explained, nor is it clear 

 what he means by the comparison with Platycheles, a genus unknown among Amphipoda. 



The genus Seba, which, from the reference in the Brit. Mus. Catal. Amph. Crust., p. 159, might 

 have been expected to occur in this pamphlet, is not mentioned in it, and I hear from 

 Prof. A. Della Valle that A. Costa, to whom Spence Bate attributes the genus, expressly 

 denies having established it. 



1854. Bate, C. Spence. 



The Annals and Magazine of Natural History. Ser. 2. Vol. XIII. London, 

 1854. p. 504. 



The name Bellia, Sp. Bate, 1851, as preoccupied, is here changed to Sulcator, itself a synonym 

 of Haustorius, P. L. S. Miiller. 



