RE Se ee eh ae Pw APR MA eho we ah whet), weeny vba << er ESTE BH Beer eges Asem reins Peiiend te te mdstigh na vatiqer . te Week tyahe o SARS ethan! See Rid atany ne eriadtied wa! santas Mis eabeas bo SEPA Bea AMA VE oan - Nett NS Sion gh oanieh APN Fe vend wenn setcad Pods dN Nig acini SEAT SNE Neat al netstat Sig ms tata OR ar ye ee cates eee ee sear m AD I Tg eM hse SAD teint ae A teen ne PEE BS ett a sites ayret esis Velho Me De te eer) MMe Te Me Doe ane ” iit, OE eee Ce ee a eT 4 ee re WON Mn 0 lay he MW Ae Mee My Ca tM DeVere an Mite Merily Nice he thee Oe AM Hoc AN The eh UM Mle Sean ae May He My Me Ae Rt He testa he Hoang Mr Me OV A tenable Mal Sh tes be STM MN MAINTE Belg Mag fn toe ta cilia Stet A nth ME My, Melts be ue Me Me tI hy ; alboe teas 14% ates ta Me ot Mt tie he Flee ths Ca ta Whey © HW Wt bite AMAA tha ocd a MAP MMe De DY WAL a Ma ee en 1 cute Mie Nal ei bane hi Ma NA Nie 8 og an Cnr oor 8.14 Bose Wa hie t Pe INT Me AA Ay len toate ttt 196 AM MMM Me Mate Ira tte 1 Met tm Matty Reta ALE Me A Wb NEN Ne en Pedy ee pba Alte Oy Trane BAA ae mene Soe beeen 2: onlin Wo Meter tnt tebe tea Ge om Borers am Mal Seiten ten ee nm Serene be Bane Mim ime Pe oy ——— ae es neles,” and the carapax seems to be much smoother than in the Panama species. Panopeus occidentalis Saussure, Crust. nouv. de Mexique et des Antilles, p. 15, pl. 1, fig. 6, 1858. In the Society’s collection there is a specimen of Panopeus collected at the Bahamas by Dr. Bryant, which evidently belongs to this species. Smith.] 280 (February 3, The general outline of the earapax is very similar to that of P- Herbstii of the same size, but the carapax is smoother, the areolets slightly swollen and more distinctly marked, the three posterior teeth of the antero-lateral margin are broad and stout, obtusely triangular, strongly upturned, and not at all hooked forward; the carpus is smooth and the groove on the outer anterior margin is rather broad. and shallow; the hands are very much as in Herbst, but smoother; the ambulatory feet are relatively longer and slenderer than in Herbsti. Length of carapax in the single male specimen, 20.9 millim.; breadth, 29.2; ratio, 1:1.40. Panopeus serratus Saussure, op. cit., p. 16, pl. 1, fig. 7. I refer to this species a single female specimen collected at St. Thomas by Prof. C. F. Hartt. It differs from the last species in the rougher carapax, the more slender and acute teeth of the antero- lateral margin, and markedly in the very rugose upper sides of the carpi and hands. From P. Hartti it differs in having the carapax much narrower in proportion, much more convex, the areolets not nearly so well marked nor so prominent, and the front only very obscurely four-lobed. Leneth of carapax, 12.2 millim.; breadth, 16.2; ratio, 1 : 1.33. Panopeus Harttii, sp. nov. Carapax broadest at the penultimate teeth of the antero-lateral margin, convex anteriorly, slightly flattened behind; areolets well marked and somewhat protuberant anteriorly; coarsely granulous and slightly pubescent on the front and antero-lateral borders; hepatic regions prominent and bearing a transverse ridge; anterior lobes of the gastric region prominent; the anterior part of all the regions crossed transversely by slight granulous ruge. Front very much de- flexed, the anterior edge thin and four-lobed, the median lobes much the largest, evenly rounded, and a little more prominent than the lateral, which project as small obtusely triangular teeth. Post-orbital tooth short and slender, and separated from the second tooth of the antero-lateral margin by a broad sinus which breaks the margin com- pletely; remaining teeth triangular in form, much thickened verti- eally, and separated by quite broad sinuses, the posterior two on each side very slender, and of nearly equal prominence. Inferior lateral regions coarsely granulous. Inferior margin of the orbit broken by a deep fissure, the inner lobe forming a stout tooth, the outer lobe 1869.} 281 [Smith. broad, and the lateral angle projecting slightly in advance of the post- orbital tooth. Chelipeds with the carpi externally granular-rugose, and with a deep groove along the outer margin next the articulation with the hand; hands a little unequal, slightly rugose above; fingers slender, deflexed, with slight impressed lines, and slightly and obtusely toothed within, the dactylus in the larger hand having usually a larger tooth at the base. Ambulatory feet slender and pubescent along the edges. Fingers black, lighter at the tips, the color not spreading upon the palm. Length of carapax in a male, 15.0 millim.; breadth, 22.5 millim. ; ratio, 1:1.50. Abrolhos Reefs, Brazil; Prof. C. F. Hartt. Panopeus Bradleyi, sp. nov. Carapax slightly convex in an antero-posterior direction, but not at all transversely; antero-lateral border slightly upturned, so that the points of the teeth are nearly, or quite, on a level with the middle of the carapax; areolations well marked, and the regions somewhat pro- tuberant; microscopically granulous on the margins, and with a few very slight transverse ruge. Front slightly prominent, nearly hori- zontal, the edge thin, with a minute median incision, and the lateral angles projecting as narrow obtuse teeth. Incisions of the superior margin of the orbit well marked. Post-orbital tooth small, trian- gular, and separated from the second tooth of the antero-lateral margin by a rounded sinus; remaining teeth rather prominent, trian- gular, thickened along the anterior edge, and with sharp depressions running back upon the carapax between their bases. Postero-lateral border crossed by a slight depression. Inner angle of the inferior margin of the orbit projecting into a prominent sharp tooth, outside of which the edge of the orbit is thin, straight and not prominent. External hiatus of the orbit a deep acutely triangular notch. Tuber- cle of the sub-hepatic region very small and close under the margin of the carapax. Chelipeds with the carpi rugose externally, and with a deep and narrow groove along the anterior margin of the outer side; hands unequal, with a slight double carina along the upper edge; larger hand stout, fingers short, widely gaping, irregularly toothed within, and with a stout tooth at the base of each finger, the one on the dactylus shutting just within the other; smaller hand with the fingers slender, Smith.j 982 [February 8, not gaping and wanting the basal teeth. Fingers brown, lighter at the tips, and the dactyli lighter than the other fingers. Length of earapax in the male, 8.4 millim.; breadth, 11.5 millim. ; ratio, 1:1.37. Panama; F. H. Bradley. Panopeus politus, sp. nov. Carapax entirely naked above, broad, moderately convex in two directions, slightly granulous and uneven on the front and antero- lateral border, smooth on the median region and posteriorly; regions slightly, but distinctly marked. Front strongly deflexed, the edge somewhat beveled from above, four-lobed, the median lobes being very broad, prominent, and separated by a sharp notch, the lateral lobes projecting as small teeth. First lobe of the antero-lateral margin broad, and its edge slightly concave; remaining lobes trun- cate and separated by three slight notches, from which slight grooves extend back upon the carapax, that from the second notch being most distinct, and forming the posterior limit of the hepatic region. Inner angle of the inferior margin of the orbit forming a prominent tooth, the outer part of the margin projecting very little. All the sub- orbital and sub-hepatic regions distinctly granulous; the tubercle on the sub-hepatic region being much depressed, forming a slight granu- oD lous prominence. Chelipeds with the carpi and hands smooth and evenly rounded above; hands a little unequal, fingers rather stout, irregularly toothed within, and with a prominent tooth at the base of the dactylus in the larger hand. Ambulatory feet nearly naked, except the dactyli, which are covered with a close pubescence. Color of alcoholic specimen light brown above, tinged with bluish purple on the anterior part of the carapax and the upper side of the chelipeds; fingers black, lighter at the tips, the color not spreading upon the palm. Leneth of carapax in a female, 13.8 millim.; breadth, 21.4 millim. ; Taplow leo. Abrolhos Reefs, Brazil; Prof. C. F. Hartt. This species is allied to P. transversus Stimpson (Annals Lye. Nat. Hist. N. Y., Vol. VII, p. 210, 1860), from the west coast of Central America, but is easily distinguished from it by the more deeply areolated and uneven carapax, the more produced front, the concave instead of convex post-orbital lobe, and by the more deeply notched and uneven antero-lateral margin. ‘The color also is very different. 1869.} 283 [Smith. Panopeus planus, sp. nov. Carapax naked, very broad, depressed and very flat above; front and sides crossed by numerous granulous rugze ; areolation very dis- ‘tinct, the gastric region surrounded laterally and posteriorly by a deep groove, a deep groove extending from the anterior extremity of the median gastric lobe to the middle of the front, and a similar groove separating the hepatic from the branchial region, and joining the middle incision of the antero-lateral margin. Front nearly hori- zontal, scarcely at all prominent, the edge slightly thickened and granulous, a very little arcuate in the middle, with a slight median incision, and the lateral angles projecting as small teeth, nearly or quite to a line with the middle. First lobe of the antero-lateral margin broad, not at all advanced, and its edge straight ; remaining lobes not at all prominent and separated by very slight notches. Sub- orbital and sub-hepatic regions very much as in P. politus, but rather more strongly granulous and quite pubescent. Chelipeds with the carpi and hands smooth and evenly rounded above, the fingers rather slender, slightly deflexed, and with very slight longitudinal impressed striaw. Ambulatory feet long and slen- der, pubescent along the edges and the dactyh wholly pubescent. Length of carapax in a male, 16.5 millim.; breadth, 26.4 millim.; ratio, 1: 1.60. Panama; F. H. Bradley. This species is at once distinguished from all others in the genus by its very flat carapax. Panopeus depressus, sp. nov. Carapax depressed, slightly convex, crossed by numerous trans- verse granulous ruge, and granulous and slightly pubescent on the front and antero-lateral border; regions slightly marked and not pro- tuberant, except the anterior part of the gastric which is somewhat swollen. Front broad, nearly horizontal, not at all prominent, and its edge thin, almost perfectly straight, and with a slight median notch in the larger specimens. First lobe of the antero-lateral margin broad, composed of the angle of the orbit coalesced with the second normal tooth, its edge thin, the inner angle slightly curved forward to form the angle of the orbit, the outer angle slightly rounded; re- maining teeth of the antero-lateral margin separated by deep triangu- lar notches; third normal tooth broad, truncate, its anterior angle sharp, posterior angle rounded; fourth tooth prominent, its anterior edge straight or slightly hooked forward at the apex, outer ard pos- Smith.] 984 {February 3, terior edge arcuate; last tooth narrow, its apex slender and hooked forward. Inferior lateral regions pubescent and thickly granulate. Inferior margin of the orbit thin, its edge as seen from below contin- uous but somewhat concave, and the inner angle projecting forward to a line with the inner angle of the superior margin. Chelipeds unequal, carpi and hands slightly granulous above; larger hand stout, the dactylus curved strongly and without a strong basal tooth within; smaller hand with the fingers slender and some- what spoon-shaped at the tips; all the fingers with slight longitudinal impressed striz. Ambulatory feet pubescent along the edges, the dactyli in the posterior pair much shorter than the others. Terminal segment of the male abdomen narrower than the penult, about three- fourths as long as broad, the sides convex and the tip rather broadly rounded. Fingers black, lighter at the tips, the black spreading far upon the palm. Length of the carapax in a male, 18.6 millim; breadth, 26.8: ratio, 1: 1.44. New Haven, Conn., common. Found in abundance at Egmont Key, Fla., by Col. E. Jewett. There are also specimens in the Socie- ty’s collection. This species, as well as the next, has very likely been confounded with the young of P?. Herbstii, but it is very different, and is easily distinguished from it by the more depressed carapax, the very differ- ent teeth of the antero-lateral margin, and by the entire absence of the tooth at the base of the dactylus in the larger hand. Panopeus Sayi, sp. nov. Cancer Panope (pars) Say, Journal Acad. Nat. Sci. Philadelphia, Vol. I, p. 58, 1817 (non Herbst). Carapax narrow, strongly convex, microscopically granulous and shghtly pubescent; regions distinctly marked and _ protuberant. Front very prominent and slightly deflexed, the edge thin, strongly arcuate as seen from above, with a distinct median incision, the lat- eral angles rounded and not at all projecting. First lobe of the an- tero-lateral margin composed of the angle of the orbit coalesced with the second normal tooth, not at all prominent, slightly concave, the inner angle slightly projecting to form the angle of the orbit, outer angele short and rounded; third normal tooth projecting much more than the lobe in front of it, and truncate; fourth tooth prominent, somewhat triangular and separated from the third and fifth by rather deep triangular notches; fifth, or last, narrow, triangular, much thick- 1869.] 985 [Smith, ened and with a ridge extending back upon the carapax. In some young specimens the tips of the teeth are slightly hooked forward. Inferior lateral regions finely granulate. Inferior margin of the orbit not broken by a notch, but the inner angle rather abruptly projecting as an obtusely triangular tooth. External hiatus of the orbit a small and very narrow incision. Chelipeds unequal (either the right or left being the larger), carpi _ and hands smooth or slightly rugose above; larger hand very stout, the fingers short and thick, obtusely toothed within, and without a strong basal tooth on the dactylus. Ambulatory feet somewhat pu- bescent, all the dactyli long and slender. Terminal segment of the male abdomen broader than the penult, about two-thirds as long as broad, the side slightly concave and the tip abruptly triangular. Fin- gers black, the tips hghter and the black spreading broadly upon the palm. Leneth of carapax in a male from New Haven, 18.8 millim.; breadth, 25.2 millim.; ratio, 1:1.54.. Length of carapax in a male from Cape Cod, 19.2 millim.; breadth, 25.2 millim., ratio, 1:1.31. New Haven, Conn., in the same localities with the last species and in about equal abundance. Eastham, Cape Cod; W. C. Fish (Collection of the Essex Institute). This species is easily distinguished from P. depressus by its nar- rower and much more convex and swollen carapax, the projecting and arcuate front, the more abruptly projecting inner angle of the inferior margin of the orbit, and by the very different form of the terminal segment of the male abdomen. ‘The teeth of the antero- lateral margin are also quite different. In some respects it agrees with Stimpson’s description of P. tecanus (Annals Lyc. Nat. Hist. N. Y., Vol. VII, p. 55, 1859) and it may possibly prove to be that species, but over one hundred specimens examined agree in having the fingers black, the left hand frequently the larger and the first, ¥ second normal teeth of the antero-lateral border coalescing, Pilumnus limosus, sp. nov. Body and feet covered with a light brown, velvet-like pubescence “composed of short clavate hairs, among which the tubercles and gran- ules appear as little depressed pits in the general surface. Carapax strongly deflexed in front but much flattened posteriorly, distinctly areolated, and ornamented above with about forty, scattered, small tu- bercles or granules, of which fourteen of the larger ones are on the gas- tric region, two being on each of the anterior lobes, three on each of Smith.} 286 {February 3, the antero-lateral, one on the extremity of the median, and three ar- ranged in a triangle behind it; the remaining ones which are smaller, irregularly distributed over the branchial and posterior regions. Front very strongly deflexed and four-lobed, the median lobes much larger than the lateral, projecting almost perpendicularly downward, separated by a deep, acutely triangular sinus, and their outer and an- terior edges slightly denticulate; the lateral lobes projecting as slen- der teeth. Superior marein of the orbit armed with three small . tubercles, of which the outer one forms the external angle. Antero- lateral margin armed with three long, triangular teeth which are sep- arated from the angle of the orbit by a broad shallow sinus, below which, on the inferior region, there is a slender tubercle. Inferior margin of the orbit broken by a deep sinus, the inner lobe prominent and usually somewhat bituberculate at the tip, the outer lobe armed along the margin with three or four small tubercles; external hiatus well marked. Inferior orbital region with a few scattered granules. An oblique line of eight or ten small tubercles on the sub-branchial region terminating just behind the posterior tooth of the antero-lat- eral margin. Chelipeds slightly unequal, carpus armed with a strong spine on the inner edge and a few scattered tubercles on the upper surface, hand tuberculose above and externally, the palm with a naked and smooth space on the lower edge at the base of the finger, fingers smooth, striate and dark brown, the color not spreading upon the palm. Am- bulatory feet slender and armed with a few scattered sharp granules on the upper side. Leneth of the carapax ina male from Panama, 11.4 millim.; breadth, 15.0; ratio, 1:1.31. Length of carapax in a female from the same locality, 11.0 millim.; breadth, 14.5 millim.; ratio, 1:1.32. Zorritos, Peru, and Panama; F. H. Bradley. Trapezia formosa, sp. nov. Carapax without lateral spines or teeth, very smooth and shining, convex in two directions, very broad in the middle but much con- tracted at the orbits; regions not at all defined; two puncta on the posterior part of the gastric region, a scattered group of several on each side in front of these and quite near the orbits, and an irreg- ular sub-marginal line of small ones along the front. Front with a slight groove along the margin above, the edge thin, slightly crenula- ted, and somewhat six-lobed, the median lobes narrow but more prominent than the others; outer angle of the orbit not at all promi- 1869.} IST [Smith. nent; sides very convex, the edge obtusely rounded, and, in the younger specimens, a very slight rounded projection on the anterior margin of the branchial region, which is entirely wanting in the larger specimens. Chelipeds slightly unequal, smooth and glabrous, with a very few scattered puncta on the upper side; meros rather short; the anterior edge armed with about six small teeth; carpus with a slight, obtuse and rounded projection on the inner margin; hand stout but not swol- len, the fingers short, considerably incurved, with a few sharp teeth within, not gaping but the pointed tips somewhat hooked by one an- other. Ambulatory feet slender, and glabrous to the tarsi. Color of alcoholic specimens uniform orange, a little darker above than below; the fingers brownish. A number of specimens give the followmg measurements: — Length of Breadth of Breadth at outer Breadth of front Bex carapax. carapax. NDIA. angles of orbits. between orbits. 35 5°6 mm. 6°8 mm. il Baler 6°2 mm. 3°6 mm. oe 7-4. oe 9-2 be 1.:1°24 8-1 ot 4:6 “ce 73 7-6 6 9:6 “c 1:1:26 8-4 6c 5:0 be 2 (org) SA 1:1°:22 He Ap es 4: OMe re ere), Tiles) oe 1:1°31 5) On Ommt Pearl Islands, Bay of Panama, among Poci/lipora capitata Vervill; F. H. Bradley. This species is easily distinguished from the next by the carapax being much broader in proportion, much narrowed in front, the outer angles of the orbits short and rounded, the sides arcuate and without a marginal tooth on the anterior lobe of the branchial region. ? Trapezia cymodoce Guérin, Dana, U. 8. Expl. Expd., Crust., p- 257, pl. 15, fig. 5. This species, or one so closely allied that the published descriptions and ficures do not enable me to distinguish it, was collected by Mr. Bradley with the last species, and in much greater abundance. Carapax smooth and glabrous, broad, slightly convex, and in younger specimens quite as broad at the outer angles of the orbits as between the lateral teeth, but in large specimens, and especially fe- males, it is slightly contracted in front; the puncta arranged much as in the last species but less marked and regular on the front. Front distinctly six-lobed, without a groove along the upper margin, the edge thin, and in some specimens very slightly crenulate; external angle of the orbit rather prominent and in young specimens acute Smith.] 988 [February 8, and somewhat spiniform; lateral edges thin, not at all rounded, and with a very distinct tooth on the anterior lobe of the branchial re- gion, which, in young specimens, projects forward as a sharp spine. Chelipeds much as in the last species, but the meros more strongly toothed. Ambulatory feet slightly hairy on the terminal segments. Coloration very much as in 7. formosa but the fingers a little darker. Several specimens give the following measurements:— Length of Breadth of Breadth at outer Breadth of front Sex. Ratio. carapax. carapax. angles of orbits. between orbits. 2 7-2 mm. 8-6 mm. 1:1°19 8°6 mm. 4°9 mm. 66 8°4 66 9°8 66 1 1°17 9:4 66 5-1 (73 ‘t GRE). 1S ioe 1:1:15 Taleike Gag Y 116 “ 1325) 9 6 1:1:16 126i (PX Oo é et} 09 Ged) 1:1°18 Mano 4-8 & st ual} 13°38 “ ARB UICAKS) Tiga Ye fG % It appears to be a much larger species than 7. formosa. Quadrella nitida, sp. nov. Carapax smooth, convex in two directions, broadest in the middle; front armed with six spiniform teeth, the median ones larger, more prominent, and separated by a deeper sinus than the others; exter- nal angle of the orbit projecting as a sharp spine; sides convex, the edge obtuse and rounded, with a single slender spine, or in the larger specimens only a slight angular projection, at the anterior lobe of the branchial region. Inner angle of the sub-orbital margin armed with a slender spine which projects considerably beyond the spine of the front above it. Chelipeds somewhat unequal, very large; meros long, its posterior edge rounded, the anterior edge armed with: six to eight slender spines, usually eight in the larger and six in the smaller cheliped; carpus smooth, evenly rounded on the outer side and with a single short spine on the anterior part of the inner side; hands stout and considerably swollen, especially the larger one, smooth and unarmed, equaling or exceeding in length the breadth of the carapax, the fin- gers not gaping, those of the larger hand rather stout and strongly incurved, those of the smaller hand longer and more slender. Ambu- latory feet slender and smooth except the dactyli which are slightly pubescent. + : Color of alcoholic specimens light yellowish, the fingers tinged with orange and encircled with a median band of black. 1869.] 289 [Shaler Length of carapax in a male, excluding the teeth of the front, 9.3 millim.; breadth, 11.2 millim.; ratio of length to breadth, 1: 1.20; length, iavluding spines of the front, 10.0 millim. Another male gives, length of carapax, 7.3 millim; breadth, 8.5 millim.; ratio, 1:1.16; length including spines, 7.8; length of meros in larger cheli- ped, 6.4; length of hand, 10.4; breadth of hand, 4.3; leneth of meros in smaller cheliped, 5.8; length of hand, 9.4; breadth of hand, 3.3. Length of carapax in a female, 8.0 millim.; breadth, 9.6 millim.; ra- tio, 1:1.20; length including spines, 8.6 millim. In young specimens the sides of the carapax are less convex than in adults. Pacheca, one of the Pearl Islands, Bay of Panama, six to eight fathoms among pearl oysters; F. H. Bradley. Q. coronata Dana, the only other described species of the genus, was from the Sooloo Sea, or Balabac Straits. J (Hh | | n i 3 @ i z ° E ~ E cE 7) Zz z =< z ° a = = 7) rete te Ee Oe ee om & ate iets ee ak We Sen, aie, et Ne le cag We oe SU Me Te en ee a ™ ne Sect lieth be ee RONG EOE eye OED ee eects Meee aes +e ee os ORNS Oe ee ny peteestsenti oie ate : De J A FIN Ee pat ie te tt SOS OEE we Me SHY : par : : ¢ ss ees : aa ecient ek ee , : 3 : iehahe eek ie hed . - . WE HEH at hb Gey ey 8 Vato amet ee wie ew RAPES kT ok ieee ee ee ee eae ATV ery 5 5s yf bs y 4 roars A ; : oa ‘ 5 Oe @ Ove L phate am tine teh Se Ye ~ yer ve Lak whe he 7 ete CELE te a ae ae et ET hse PC ee : : P eg Sk tte 1 ek Kren : fgtle bidtelh dd tn he th et aruckent \ ; : Ep od HAN SSE RY OH OG eke ‘i depute ter res ae eu Td oe ied ‘ a