134 GEOL. AND NAT. HIST. SURVEY OF MINNESOTA. 



Cantliocamptus liibernicus Brady. 

 Plate L, Figs. 3, 4. 



A small species differing from all others save the next in having a 

 three-jointed inner ramus of the fourth foot. 



"Anterior antennae of the female slender, eight-jointed., about as 

 long as the first body segment, and much like that of ('. minutns. In- 

 ner branch of the second antenna very small, one-jointed. Posterior 

 foot jaw having a broad hand armed with a long apical claw. Inner 

 branch of the first pair of feet scarcely twice as long as the outer; first 

 joint longer than the entire outer branch, and nearly twice as long as 

 the united second and third joints, both of which are extremely small. 

 Inner branches of the second, third and fourth pairs shorter than the 

 outer, and three-jointed, the first joint being very small. Inner seg- 

 ment of the basal joint of the fifth pair of feet in the female elongated, 

 fringed, bearing two long and three short apical set?e; second or outer 

 joint sub- ovate, finely fringed internally; externally bearing six long 

 marginal setfe. In the male the limb is smaller, the basal joint short, 

 broad and having six short sette of equal length; second joint nearly 

 like that of the female. Caudal segments somewhat longer than 

 broad; inner seta about twice as long as the outer; anal operculum 

 denticulate. Length 0.65 mm." Not found in America. 



Cantliocamptus palustris Brady. 

 Plate L, Fig. 5. 



A brackish-water species about 0.9 mm. long, found in a number 

 of places in the British Isles. The species presents several anomalies. 



The antenuai of the female are eight-jointed; those of the male 

 robust, the last joint forming a hook. The first four pairs of feet 

 have both branches three-jointed; the fifth pair in the female are two- 

 jointed, with a short and broad basal joint, the second joint being sub- 

 ovate, bearing five long apical sette; in the male the fifth pair is 

 obsolete, being reduced to a minute setiferous lobe. Caudal segments 

 short, bearing two principal sette, the outer half as long as the inner. 



Cantliocamptus borcbeidiugii Poppe. 



Poppe '89. 



The female is 0.64 mm. long. Caudal margins of cephalothoracic 

 segments unarmed, but in the middle of each segment a transverse 

 line of spinules. Abdominal segments spined beneath. Anal opercu- 

 lum with eleven teeth. Stylets short with two short unpectinate sette, 

 the inner half as long as the body while the outer is one- fourth. An- 

 tennte eight-jointed, shorter than the first segment. Mandiblar palp 



