MAIOIDEA. 



somewhat constricted behind the eyes, median region prominent, 

 greatest breadth equalling post-orbital length, and more than double 

 trans-orbital breadth; beak much shorter than trans-orbital breadth, 

 horns throughout contiguous. Exterior antennae much longer than 

 the beak, having outer angle of basal joint prominent and subacute, 

 following part of organ long ciliate, second joint subspatulate, 

 sparingly longer than the third joint. Hand of anterior feet oblong, 

 somewhat tumid, smooth, fingers very widely gaping, third joint 

 tubercular; second pair twice as long as either of the following; all 

 four posterior pairs very minutely hirsute, third joint more or less 

 tuberculate. 



Plate 3, fig. 5 a, male, enlarged two diameters; b, under view of 

 head ; c, abdomen, enlarged two diameters ; d, hand, enlarged two 

 diameters; e, extremity of third pair of legs, left side, inner view. 



Length of carapax, of specimen examined, ten and a half lines; 

 greatest breadth, eight lines; breadth between tips of orbital acanthi, 

 three lines ; length of beak two lines. 



The T. cornigera is stouter than either of the following. The cardiac 

 prominence consists of three prominent tubercles, the posterior one of 

 which is subdivided, besides two others anteriorly, and others small 

 and granulous posteriorly. The tubercles are smooth at summit, but 

 are set around with granules, or more properly hairy points, like the 

 hirsute points of the legs, though shorter. The beak, just back of the 

 orbits, and the sides of the carapax, are hairy, and there is also a tuft 

 or two either side of the posterior part of the stomach or median region. 



Pisa cornigera f LATH., Encyc., x. 141. 

 Pericera cornigera? EDW., Crust., i. 335. 

 , ADAMS and WHITE, Sarnarang Crust., 18. 



TlARINIA GRACILIS. 



Maris : Carapax pone oculos paulo constrictus, latitudine carapacis 

 maxima longitudinem postrorbitalem fere cequante, latitudine trans- 

 orbitali sat majore quam dimidium latitudinis maximce; rostro an- 

 tennis externis breviore, cornubus apice parce diver gentibus, lateribus 



