20 T. V. IIOIMJSON. 



fIROLANA. 



Aiintlior of Lrmli's j^oiirra, ostjil dished ill IRIH and now containinj; alioni tliirty 

 Rpcfics from all oreaii«. Tlic following Hpci-ies luis not licpn previously rei-onlod. 



Cntol.ANA MKKIDIONAI.IS. 



(I'latc III.) 

 Specific chanictcni : — 



FiTlh HCf^munt of the luctnsoinc nnrrower tliiin the preceding one, but tiie latenil inargiriH nrc not 

 covere<l by tlie fuurtli segment. 



No cyea. 



Tlif total Iriigth of the animal is .'3f) nun., its width la mm. The cephalosomc 

 in very strongly marked off from the hody and no trace of eyes can he di.werned. 

 Its anterior margin is rounded Itut slightly, excavated for the origin of the first 

 antenna, between which there is u small rostrum, it is unevenly rounded laterally and 

 the posterior Itorder is incurved to a slight cxteiit. 



The nie.so.some is (juifc smootli, in life rather thiitkly .spotted with light yellowish 

 spots on the Itrowii ground colour. The .seven segmentH arc distinct, the first is the 

 longt\st, liut owing t^) the curvature of the hody it is foreshorteneil in the figure and 

 partially encloses the ceplialo.some ; the second is al)out half the length; the others, 

 up to (he fifth, progressively increa.se in length ; the si.xtii is very little .shorter, and 

 the seventh shorter still. Excejjt on the first the cpimera are distinct from their 

 respective .segments, increasing in size to the fifth and, again except the first, pointed 

 posteriorly. 



The meta.some compri.ses .six .segments, of which the last is fu.sed with tln' tcl.son. 

 The tiist .segment is very short, the others progressively decrease in width, the fourth 

 to .some extent overlapping th(! fifth laterally. The cpimera of the four anterior 

 .segments progre.s.sively increase in size from tlie first and are acutely pointed. 



The telaon is liroad and rounded, Iml icrniiii.iiiiiij; in the middle line in a small 

 projection. Its distal margin is setose. 



The uropoda arc large ; the .short and stout ]iroto])odite has its inner angle 

 produced as a .spur and hears a narrow leaf-like exopodite seto.se all round ; the 

 eiidopoditc is really aliout the same length hut broader and similarly setose ; it 

 projects just beyond the end of the tcl.son. 



The first antenna has a tii ice-join ted peduncle, the first is very short and .stout, 

 the .se<;ond less stout and shorter, the third is as long as the other two together. 

 The flagcllum is twice the length of the last joint of the pedun<dc and con.sists of a 

 numlicr of stout but very short ill-definc<l joint.s. It,s anterior margin bears a innnber 

 of stout setiu ; at first sight* these look to be more like .spines, but (hey are certainly 

 of a sen.sory character. 



