cyclopoidea: 



1195 



half the body, the arcuate joint concave behind, hardly as long as the 

 following one; setae divaricate, the long apical setae articulated at 

 base so as to admit of motion by muscles. Before the penult joint, 

 the apical part of antenna may be flexed upon the preceding portion. 

 Posterior antennae long and slender; observed but three joints ; the 

 last terminates in four or five unequal moveable setae. Extremity of 

 maxillipeds bearing a few short setae. Cheliform feet of very large 

 size. The first joint as long as the second, more slender, and a little 

 arcuate; the second six times as long as its greatest breadth, naked; 

 finger made up of a very short joint and a long slender spine. Nata- 

 tories with the branches unequal, three-jointed ; often thrown back as 

 in the figure. Appendages to basal joint of abdomen four-jointed, and 

 having setae at apex extending nearly to extremity of abdomen. 

 Caudal stylets but little longer than last segment of abdomen, not 

 divaricate; two setae, the second and third, are as long as the abdomen, 

 and exterior to these are two very short ones. 



Genus SETELLA. 



Corpus aiigustissimum, fere lineare, antici attenuatum et suhacutum et 

 sub fronte appendices duas parvulas falciformes gerens. Antennce 

 anticce flexiles, appendice brevi instructor, setis hrevibus; maris non 

 subcheliformes. Pedes antici mediocres out parvi ; proximi sequentes 

 lateraliter porrecti, apice breviter setigeri. Pedes abdominis quatuor 

 elongati et elongate^ setigeri, ad segmenta Imum 2dumque affixL Setas 

 caudales duae longissimm, reliquae brevissimm. 



Body very narrow and nearly linear, anteriorly attenuate and sub- 

 acute, and the beak bearing below two small falciform appendages. 

 Anterior antennae flexible, having a short appendage ; setae short ; in 

 male not subcheliform. Anterior feet of moderate size or small; 

 next pair following extending laterally, short setigerous at apex. 

 Four abdominal feet elongate, and bearing long setae attached to the 

 first and second segments of the abdomen. Two caudal setae very 

 long, the rest quite short spines. 



The Setellae are remarkable for their very slender bodies, and the 

 extremely long caudal setae — exceeding much the length of the body 



