^o.ibi^o. NEW SPECIES OF CALiaiN.E— WILSON. 621 



enlarged just before their entrance into the oviduct. Both glands 

 and ducts are surrounded by a thick envelope which reaches forward 

 nearly to the anterior margin of the genital segment and which covers 

 a large portion of the oviduct coils. 



The gland cells are wide and extend well back toward the posterior 

 end, leaving a comparatively short and wide duct. In some of the 

 young females the grooves separating the cells are invisible in the 

 livmg animal, and the entire duct and gland have a uniform white 

 color. 



The semen receptacle is at the extreme posterior margin of the 

 genital segment and of the usual spindle shape. 



Total length, 5.67 mm.; length of carapace, 2.67 mm.; length of 

 genital segment, 1.8 mm.; length of abdomen, 1 mm.; width of 

 carapace, 2.65 mm. ; length of egg strings, 4.33 mm. 



Color a light gray, spotted on the dorsal surface along the ridges 

 and grooves with a rich red-brown pigment. In young females the 

 color is that of transparent cartilage, sprinkled over the entire dorsal 

 surface, and on the ventral surface around the bases of the append- 

 ages with profusely branched blotches of a pale indigo blue. 

 Sparsely scattered amongst these on both surfaces are smaller and 

 less-branched spots of rose purple, the whole appearing, however, a 

 uniform gray to the naked eye. 



(caligodes, caligus, and the ending eiSog denoting likeness or 

 similarity.) 



Male. — Carapace elliptical, slightly longer than wide, and not much 

 narrowed anteriorly. Frontal plates prominent, but narrow; lunules 

 as large as in the female and widely separated; front border emargi- 

 nate. Posterior sinuses shallow, U-shaped, their sides parallel to the 

 median axis; the median lobe not projecting and with sharp posterior 

 corners. 



Thoracic area relatively smaller than in the female and nearly 

 semicircular. 



Free segment short, but with rudimentary wings covering the bases 

 of the fourth legs, which make it wider than the genital segment. 



Genital segment ovate, with a concave posterior border and show- 

 ing both the fifth and sixth legs plainly in dorsal view, the former on 

 the lateral margins one-third the distance from the posterior end, 

 the latter at the tips of the posterior lobes. 



Abdomen less than half the width of the genital segment, but con- 

 siderably longer; anal lamina? large, almost as long as the abdomen 

 proper and each tipped with three long plumose setae and carrying a 

 smaller one on the outer margin. 



Appendages as in the female, the only differences of note being 

 the second antennae and second maxillipeds. The former are much 

 enlarged with a swollen basal joint, a still larger second joint, and a 



