^Thik)^'] PROOEEDINfJM OK TIIK NA'I'IONAL MUSEUM. 22!) 



ji sul)r(M'tiiii};iiliir space. Ix't.wctMi t<lu'S(^ spiiics, wliirli is llaKeiuMi cxicpt 

 lor a low iiicdiaii rid;;'^ wliic.li Ix'coiih's inor<> proniiiiciit. as il (^xtciids to 

 llic, losdiiiii. Aiiicrioi' jxuMoii oi' I lie. ('araparc slron^ly d<^lU'x<>(l. 

 (Jarcliar. rojj^ioii (livi<l«'(l liy a shallow loii«4i( iidina! {^loovc into two pro- 

 tidxa'aiKM's <'a<-li Irrniinatcd hy a spine, 'riicrc is a small spine on ilie 

 anterior porli<ni of each hianehial re;j;'ion ; a lateral siilnnar^inal row of 

 small irremdar spines is eontiinied on the plei'v«;'oslondan r<'<;ions; a- 

 prominent/ lriaii<4nlar acnic s|)ine delines the. ontcr ani^le of Ihe orbit; 

 t.liere is another smaller llatlened spine on the npper orhilal hordei'; 

 an<l two spinnles ItetAveen., and in ai line with, the snpra.cnbil al and the 

 lai'^'er gastric spine; there is a. small spine<ni lhenmrj;in of I he hepatie 

 re<^i(»n. Ii'oslral spines short, trianj;iilar, e(»nv<'\, Intii/onlal, with a 

 wi<le V shaped interspa<'e. I'^yc^s lar^'e, stalks sh<»rt, rathei- stoid, w*itli 

 a s|>innle alMtve, at, I Im^ <listal e\tr<'mity. Ahdomen ln(»a(Ily o\'al w it h 

 HJ'ven se^^inents, ;;raiinlalc, earinate,, carina, spinnlilerous, The sirrnnm 

 is armed with spines <m its onter marj^ins, and also aroiuxl th<^ nmr*;in 

 of I he alxhnnen, and on Mm^ median line in I'ronl of the aJxIomen. An 

 tcnna- with liasal joint, armed with three, spines on the, outer imir^iii, 

 and one on t he ant.<M'ior port ion, {,\\i\ spines point in^' downward ; seeond 

 and third Joints llatte.ned verti<'aHy, short, hroad, spinnlilerous on 

 lower maj'j»ins, the third joint icachinjj;- hid, little beyond the, rostrum. 

 Anti'unuhe 1od<;cd in ea\ities underneath the, rostrum, tlnUtasal joint 

 with its anterior margin thin and ele.vatcd. lOxteiior maxillipeds with 

 isehinm and merus spinous, inerns with its aut<'ro external anjj^le pro- 

 <lue<Ml inloa flat, rounded projeetion, spinous on iln^ mar<^'in. 



Ohelipeds about two and one third times tin* length oCllie earapaeo, 

 spinous; merus about as lon^' as the propodus, more, «u' less four sided, 

 thc! two rows (»(■ spines on the lower marj^ins beinj^' the stronj^est; palm 

 wideninj;' a little, towar<l the liuj;ers, wit h about six I'ows oC spines; 

 linjicis each with a r(»w <»!' iri'ej;ular tceih within, not (il linj;- <dosely 

 to^clher. h'irst ambulatory lej^- nearly I w iee as hmj; as the eheliped, 

 arnu'd with slender spiiu-s, which are lon^ci' in I he two rows beneatli, 

 and especially so in the last, two joints, where t he I wo rows arc^ sli;;htly 

 curved toward each other, the spin«'S directed (owai'd t he e\t rendly ol" 

 the dactyl. Second ambulatory le^- two thirds as l(Ui<;' as the lirsl, less 

 heaiVily arnu'd ; dactyl unaiined. Last two pairs slunler, mcue slender, 

 ^ranulous, unarmed, except for a small spiui' at the(|istal exlreunty ol° 

 the merus and a, lew spinnles. A nd»ulator_\' lej^s slij;h( ly pul)es('(uit, 

 except the <lactyls, which are t hickly hirsute, abo\e; dactyls slij^htly 

 enr\ed. ('<»lor oC h'j^s in alcolud pinkish, tin* Ion j;^ spines of a <le<'per 

 shade. 



Immature specanu'us dil'ler Irom the above(les<ripliou in having I he 

 dorsal spines much lonj^ei- and m(M<' shuider, and ailditional spinnles on 

 the branchial r<'^ion. The only mah*, in the collecti<m is about iL'.f) 

 ndllinu'lers lon*^; tin; alxlomen has sev«'n segments, the carina, is spin 



