REVISION DES OCHYROCERATIDAE 133 



tooth-like ridge, followed to the end of the faix by a row of 

 three closely-set minute teeth. 



The rnaxillae are long, strong, especially near their base, 

 straight, rather rounded, pointed at their extremity, and consi- 

 derably inolined to the labium ; their colour is like that of the 

 falces. 



The labium is shghtly suffused with blackish, of abnormal 

 size, its base extending to the whole width of the sternum, 

 and of an equilateral triangular shape, its apex obtusly pointed ; 

 it is similar in colour to the maxillae, wich, instead of being 

 placed in the normal position, i.e. close to the sternum, on each 

 side of the base of the labium, appear to issue from it some 

 little way up on each side. Beliind the labium the tongue 

 is visible like an inner labium, it being obtuse at the end ; it 

 reaches nearly to the extremity of the maxillae, and is tipped 

 with a group of brown papilliform projections. On the 

 inside of the maxillae is (apparently) a membranous enlarge- 

 ment, which I hâve not noticed before in any other spider. 



The sternum is short, heart-shaped, of a blackish hue, with 

 a greenish longitudinal central stripe and greenish spots on 

 the margins. 



The abdomen is elongate oval, or soraewhat subcylindrical 

 in shape, joined to the thorax by a short distinct pedicle. 

 Its colour is black, with a longitudinal central bluish-sea-green 

 stripe, and several oblique stripes of the same colour on each 

 side, the anterior being the longest and strongest, reaching 

 nearly to the spinners ; the underside has two similarly coloured 

 spots about the middle in a transverse line. The spinners 

 are short, the outer four about equal in length, black, with 

 a spot on the outer side at the base, and the tip greenish white. 



Habitat. — Mexico. Teapa in Tabasco. 



Observations. — Cette espèce paraît très voisine de VOchyro- 

 cera arietina E. S. ; l'organe copulateur est très peu différent 



