2232 CRUSTACEA. 



COPILIA MIRABILIS. 



Cephalothorax fronte latus et parce excavatus, posticd paulo latwr, seg- 

 mentis posticis latere obtusis, ultimo ad apicem dorsalem spinigero. 

 Antenna? posticm ad articulum primum setulosai, digito longo. Abdo- 

 men tenue, cephalothoracis dimidio brevius, obsolete* b-articulatum. 

 Styli abdomine longiores, tenuissimi. 



Cephalothorax broad in front and sparingly excavate between the 

 conspicilla, broader posteriorly ; following segments laterally obtuse, 

 the last with a minute spine at the dorsal apex. Abdomen slen- 

 der, hardly half as long as cephalothorax, obsoletely five-jointed. 

 Stylets longer than abdomen, very slender. 



Plate 86, fig. 14 a, animal, enlarged ; b, under view of same, en- 

 larged, showing the antennae, mouth, conspicilla, &c. 



Pacific, near the Kingsmill Islands. 



Colourless. Length, one-sixteenth of an inch. 



This singular species, as shown in figure 14 b, has the lenticular cor- 

 nese or conspicilla (a) of the eyes very distant from the lens (b). The 

 form of the conspicilla on the anterior side is nearly a segment of a 

 sphere ; but behind it is low subconical. The pigment is bent at an 

 angle and is very long, the two slender masses nearly meeting along 

 the centre. Fig. 14 b, also shows the nerve (c) passing to the anterior 

 antennae, and the muscles (d, e,f,) moving the organs of the mouth; 

 also g, moving the anterior leg or maxillipeds, which organs are like 

 those of the preceding genus. The outer maxillae appear to be quite 

 different in form ; they have a broad terminal joint, two-lobed, and 

 ciliate or hairy at apex. The stomach is broad ovate, and hardly 

 extends beyond the anterior segment. The first segment of the cepha- 

 lothorax slightly enlarges from the front backward, and more rapidly 

 towards its posterior part. 



The three posterior cephalothoracic segments gradually decrease in 

 width, but not much in length; the last is hardly half shorter than 



