Ileferocuma sarsi, Miers. C13 



The antennules (fit^. 3) me sliort niul stout, tlie fir.-<t sep:- 

 niciit of the peduncle about e(jual lo the second and third 

 to-^ether, and tl»c second a littlo shorter and a good deal 

 stouter than the third. Both flagella are present, each coni- 

 poscil of two segnieiit.s ; tlie minor fla;;^fUunj is sliorter tlian 

 the first segment of the major. The autc-nnaj (fig. 4) liave 

 four plumose setaj on the basal aegnient, arul the distal seg- 

 ment is very small. 



The niandiblrs are of" normal form, with about 17 spines. 

 The inaxilluhe (fig. 5) have a very long and slender palp, 

 more than twice as long as the distance from its base to the 

 tip of the distill lobe, with two apical seta3. The niaxilhe arc 

 of normal form. 



The branchial ajiparatus (fig. ('>) has a largo number of 

 lobules (about 40) disposed in a straight row. I was unable 

 to demoi»strate the existence of an anterior reflexed lobule, 

 but am not confident of its absence. 



The third maxillipt-ds (fig. 7) have the basis slightly ex- 

 panded distally, where its width is nearly one-fourth of its 

 length along the inner edge. The distal inner corner forms 

 a short acute tooth j the outer corner is produced as a large 

 bluntly pointed lobe extending as far as the distal end of the 

 merus and fringed with long seta? near the tip. The ischium 

 is narrow, but the mcius is produced on tho outer side as an 

 acutely p( iiited lobe tipped with a single long seta. The 

 caijius is expanded on the inner side so as to assuiue a 

 triangular form. 



The first legs (fig. 8) have the basis rather slender and a 

 little shorter than the distal sogments togctiier; it has a pair 

 of stout spines on tho inner edge near the base, and the distal 

 inner corner forms a small acute txjth. The carpus and 

 propodus are subequal, and the dactylus is two-thirds as long 

 as either; the propodus carries at the distal end of its inner 

 edge a group of very long seije. 



'i'he second legs (fig. 9) are short and stout ; the basis is 

 two-thirds as long as the distal segments together and carries 

 a setose styliform exojjod extending beyond its distal end; 

 the isciiiuuj is su|»pressed; the merus has a stout spine at its 

 distal inner angle ; the carjius is as broad as long and not 

 mucii longer tlian the propodus; the dactylus is strongly 

 spinose. The third legs (tig. 10) have a stylilorm exopod 

 like that of the second legs, but it does not extend beyond 

 the middle of the basis. 



The peduncle of the uroj)ods (fig. 12) is a little longer 

 than the last somite and has a row of unequal sj)ine3 on the 

 inner edge. The rami are somewhat flattened. lije endopod 



