50 REPORT OF NEW JERSEY STATE MUSEUM. 



beautiful fairies as though they were an ordinary article of their 

 diet; but the m(ud-m|innows would not touch themi. Later, I 

 placed innumerable minute leeches in the same tank, and these 

 the minnows greedily devoured, but the sunfish ignored them 

 completely."^ 



Genus INO Schrank. 



Ino Schrank, Fauna Boica, III, 1803, pp. 179, 249. Type Ino piscina Schrank, 



monotypic. 

 Chirocephale Prevost, Journ. Phys. Chim. H. Nat. Paris, LVII, 1803, p. 2>7- 



Type Chirocephale diaphane Prevost, monotypic. (Name inadmissable as 



simply a vernacular.) 

 Chirocephahis J. V. Thompson, Zool. Research., Ill, 1834, PI. 3, figs. 4-5, PI. 4, 



fig. I. Type Branchipus prevostii Fischer, monotypic. (Not consulted.) 



Body slender. Head moderate in size. Second antennse or 

 male claspers with basal joint very larg-e, thick, somewhat curved. 

 Second joint very long, slender, curved inward, with sharp basal 

 spur. Two remarkably long large frontal appendages arise be- 

 tween base of second antennae, their length about twice that of 

 second antennse, miuch twisted and coiled, and variously lobed 

 and spinulated. Eleven pairs of natatory feet. Basal lobe or 

 endite long, with edge regularly curved, and second with an 

 outer subdivision about one-fourth as broad as first. Each pair 

 of feet paler, with rather long fringe of delicate hair-like setae. 

 Second to fourth endites small, each with three or four long 

 minutely spinulated setae. Fifth endite of usual size, but rather 

 square, much as in EiibrancJiipiis, with tendency in lower outer 

 angle to- be somewhat produced so as to be subtriangular in out- 

 line. Sixth endite unusually long, narrow, almost lanceolate, 

 with long setae in third pair of feet, or small, narrow, and 

 abruptly rounded in first pair. In tenth pair narrow and rounded 

 at tip. Flabellum and gills much as in Buhranchipiis. Male 

 genital apparatus short, small, deeply cleft, formed into two 

 slender curved portions, each with its cirrus. Caudal appendages 

 long and broad, much more so than in Bubranchipus. Second 

 antennae in female with mucronate spur on tip larger and longer 



^Upland and Meadow, 1886, pp. 71-72. 



