ANCEUS MAXILLARIS. 



TSOPODA. 



ABERRANTLA. 



187 



ANCEID^E. 



ANCEUS MAXILLAKIS. 



Specific character. Male with the cephalon broader than long, dorsally 

 depressed, especially in the middle and anterior part, and finely granulated 

 on each side within the eyes ; fore margin transverse, with a prominent 

 tubercle within the mandibles, the centre itself having a much less prominent 

 conical tubercle. Mandibles about two-thirds of the length of the cephalon, 

 with a strong notch on the outer edge, and about ten denticulations on the 

 inner edge, the apex forming a sharp tooth. The second pair of gnathopoda 

 with the three or four basal segments soldered into a large flattened semioval 

 plate, strongly ciliated on the inner margin. Male exserted organ very long 

 and thin. Legs very finely serrated on the middle joints. 



Female, with the second pair of gnathopoda strong, two- jointed, basal joint 

 angulated ; first pair of gnathopoda like those of the male. 



Length of an inch. 

 (Male) Cancer maxillaris. MONTAGU, Trans. Linn. Soc. vii. p. 65, 



t. 6, f. 2. 

 Gnathia maxillaris. LEACH, Enc. Brit. Suppl. Encycl. Method. 



Crust, pi. 336, fig. 25. 

 LAMARCK, Anim. sans. Vert. v. p. 168. 

 DESMARBST, Cons. Cru^t, p. 283, 



Anceus maxillaris. 



