254 Wisconsin Academy of Sciences, Arts and Letters. 



pairs; two wide rings clearer than the general color are found around 

 the abdomen, the first being in the middle of the anterior part, the 

 second on the constriction. In the individual from Saint Laurent de 

 Maroni the posterior part of the abdomen is grayish, much deeper 

 than the rest of the body. The legs are of the color of the body but 

 a little paler. The anterior eyes are amber yellow, the others black- 

 ish. 

 Two males from Cayenne and St. Laurent de Maroni; female unknown. 



SIMONELLA LUCASII Taczanowski. 1874. 

 Plate XII, figure 9. 



Janus lucasii Tacz. , Les Araneides de la Guyane f rangaise, p. 96. 



Eyes in four rows; cephalothorax in two parts, abdomen with a con- 

 striction near the base; color of cephalothorax reddish yellow; four 

 black spots on the head; abdomen grayish. Length 9 4 mm. 



$ . Cephalothorax slender and elongated, with the head square, distinctly 

 separated from the thoracic part by a strong constriction, terminated 

 behind by an inclined slope. The sides parallel and perpendicular; 

 the thoracic part longer but not so wide as the head, is comojised of 

 a much contracted but short neck, followed by a globular knob, 

 which is terminated behind by a sliort pedicle which is more slender 

 than the anterior constriction. The eyes are in four rows, but are 

 arranged a little differently from those of the preceding species; the 

 ocular quadrangle is a little longer than wide;* the anterior eyes are 

 large, in contact, occupying the entire front of the vertical inclina- 

 tion of the face; the second pair is placed on the back behind the 

 eyes of the first pair, but they are a little further from each 

 other than the distance between the external borders of the first 

 ones, and are directed sideways; the posterior eyes are larger, but 

 are separated by the same distance as those of the second row, the 

 eyes of the third pair halfway between the second and fourth. The 

 falces are short, thick and vertical. The abdomen is of the same 

 length as the cephalothorax, thicker, commencing by a short pedi- 

 cle which appears to constitute a prolongation of that of the thoracic 

 part; behind this it suddenly grows larger up to the middle of its 

 length and then grows smaller again so as to terminate in a point. 

 The legs are slender and not very long, in the order 4, 3, 1, 2. All 

 the body is glabrous, with some sparse hairs, which are rather long 

 on the upper part of the head, and on the posterior part of the back 

 of the abdomen. 



* The quadrangle is wider than long if the second row of eyes is taken as its anterior 

 line. See note under preceding species. 



