ox CRUSTACEA BROUGHT I'.Y DR WU.LEY KROM THE SOUTH SEAS. 641 



dilated superior antennae.' According to Schiiidte and Meinert, it is not to Anilocru, 

 but to Nerocila that it stands nearest, though easily distinguislicd from that genus 

 by tlie character of the antennae, and many other points. While Miers includes in 

 the generic character ' the front not produced inferiorly, so as to conceal the bases 

 of the antennae,' the other authoi-s give ' frons prosiliens, declivi.s, fornicata, scapos 

 antennarum magnani partem obtegens.' This concealment, in fact, as often, only applies 

 to the dorsal view. Miers, in describing the type species, Renocila uvata, a.ssigns to 

 the head a 'straight anterior uiargin, which is inflexed, but not produced so as to 

 conceal the bases of the antennae,' and this i.s evidently more accurate than the 

 expression ' non-intlexed' in the generic account. 



The mouth-organs are not discussed by the above-named authors. In respect to 

 the upper lip, the two maxillae, and to some degree the maxillipeds, these agree with 

 the figures of those parts in Savigny's Egyptian Crustacea, pi. 11, fig. 10, assigued 

 by Audouin to Anilocra cuvieri, Leach, but copied by Guerin, Iconogi-aphie, Crust., 

 pi. 29, fig. 4, for his Canolira aecjijptiaca. Seeing that Gut^rin expressly says that 

 his species has the outer ramus of the uropods a little longer than the inner, and 

 Canolira is di.stinguished by Leacli from Ajiilocra by the single character that the 

 inner ramus is the longer, Guerin's species cannot be a Canolira, and that genus 

 appears to be unteuable for want of any real definition. 



Renocila pehiophth.vlmi, u. sp. 



Plate LXVIII B. 



Head broader than long, front slightly inflexed, truncate with rounded angles ; 

 breadth abruptly increasing at the eyes. Body smooth ; peraeon broad, only slightly 

 convex, length of .segments in medio-dorsal line least in the seventh, greatest in the 

 first, which is nearly approached by that of the fourth ; obtuse-ended sidi^-plates of 

 second and third segments reaching beyond the lateral angles : those of the fourth 

 about, or not quite, level with those angles, those of the three following segments 

 successively much smaller and not nearly reaching the angles, which are successively 

 more produced backward, those of the last segment very obtuse and overlapping the 

 first three segments and nearly all the fourth of the abruptly narrowed, and in 

 (li.rsal view, parallel-sided pleon. The first segment of the pleon is rather longer 

 than any of the four following; all are obtusely angled medio-dor.sally : their side- 

 plates bend abruptly downward and then a little outward, being successively snuiUer, 

 and in the fifth segment not reaching thi> dor.so- lateral angles. The tennin.il segment 

 is flat, broader than long, strongly I'ounded exce])t at the base, so as to have an 

 almo.st circular appearance; its length ecpials that (jf the other pleon .segments 

 together. 



Eyes rather obscure, small, distant, with about ten ocelli. 



First antennae stout, not geniculate, the two btisal joints clearly distinct, the 

 third abruptly wider than the .second, the seventh much narrower than the sixth. 

 but still broader than long, the eighth minute. 



Second anteimae quite concealed in dor.sil view, much shorter and narrower than 

 the first, consisting of seven joint.s, none very large. 



