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THE AMERICAN NATURALIST [Vol. XLI 



C. speciosa n; sp. (Figs. 8-10) 



Specific characters.— Yery small, 163 feeding to 238 it creeping. 

 Head very small, diameter of corona 26 /(, of prominent collar 38 a. 

 Food not moulded into pellets. Teeth 2/2. Anal segment with 

 lateral prominences. Foot 3-jointed, first joint with lateral proc- 

 esses, spurs small, tapering, divergent. Toes three. Dorsal 

 longitudinal and ventral transverse skinfolds forming symmetrical 

 pattern, which is constant. Length of antenna half diameter of 

 neck. 



The most distinctive character is the pattern formed by the 



skinfolds. Many species have a similar pattern formed by the 

 dorsal wrinkles, but no other species has the ventral surface so 

 ornate. Apart from this character it has no close resemblance 



