vol 



,j?,'''] I'KOCi:i:i>IN(;,S OF TMI: NATK>Ny\L MUSEUM. 



Cymopolia fragilib. 



259 



('arapa<;o, very hroa*!, oriiiirnciit<Ml wit li t iilxn^lc.s as follows: two kir^i- 

 an<l Idoiid on tin*, (Vorilal rtf/utM; two small ;nnl broad «lir<'<;tly Ix'liiiid 

 tliosc; lour airaii;;(;(l almost triinsvrrscly a(;ross the j^astrir, r(';4ioii ami 

 Kcpaiatod by tli(5 iin'Ko^astric n'j^ioii, oti wliicli there are thr<ie in a tri 

 aii^ile, and bcliind these two j;rannles; across tin; eardiac region tliere 

 is a promiiM-nt tiansverse. rid;;(i ol lour- huj^e 1iib<'reles, which is eon- 

 tiiiiH'd oil the, bninehial rejiioii l)y an arciiafi' line ol fom- smaMer ones; 

 belwerii tin; jx-nnltimale, fnbcrcle of this low and the ardero laferal 

 niar;^in there are two small Inbereles; there, isatnber(;le ne.ar tin; inner 

 an;:le of tin; branchial rc;4ion, and sonnjtimes ainither exterior to it; 

 al.so a d<;pressed tubercle behind the <tibit; tln;re are two granules on 

 the posti'iior j)ortioii of the (jardiac; i(';4ion ; the posteiior nniij;in is bor 

 dered by granules. The, space l)et\veen tlic tubercles is cov(;red with 

 shoit s«-altered s(;ta', FioJit four toothed, tlie median lobes ])roduced 

 ami near toj;ether, the lateral small. Supraorbital mar;;in with two 

 teeth. Antero lateral teeth five, inclinlin;? the j»ostorbital, the. last 

 f wo appro,vimatin^. The inferior orbital border has two wide cuts: 

 the inrn-i- lobe is itself two-lobed, with the outer lobe the larjfer. 

 Sternum and abdonn-n liin-ly pubescent; a rid;:«; runs on the fifth 

 steiinil se^iUM-nt from the s(;('ond abdominal sej^ment to the eoxa; of tin- 

 fourth ])airofle^K; terminal sej^ment of abdomen threc-lobcd. ('lieli 

 peds weak in l)oth se.xes, pubesc(Mit; carj)Us and maiius obs<',urely tu- 

 beiculate. Second and third pairs of ambulatory legs much exceeding; 

 the others, the s<;cond the longer, more than twic(;as long as the width 

 of the carapace; meral joints of second and third pairs long, flattened 

 below, with two dentate ridges above, the margins also dentat(;; eai'pal 

 joints with smooth ridges; |)ro])odal Joints with long hairs fringing 

 the margins, the hairs lying liat upon the joints; dac^tyls with hairs upon 

 the uppej- nnirgin. First ambulatory l(;g a little longei' than the width 

 of tin; carapa<;e., slender, obseurely ridged; fourth ambulatory leg very 

 weak, about as long as tli(M;arapaee. 



Length, S.o; width, lli.U; length of first ambulatory leg, about 1-3; of 

 se(;ond, 25.5; of fouith, 8 millinniters. 



Off Lower (Jaliforniaj IJ. S. -Fish Comuiission steamer A Ihatross, 1880 : 



Cymopolia zonata. 



Carai^a^'c much narrower than in the preceding species, pubescent; 

 prrjtulx'rances arranged as in fnif/llt>i, but(5onsisting not of single tuber- 

 cles, but of clusters of many snuUl tu'^or'-lv'j Qr grauules. Front four- 



