Upogebia omissa Gomes Corrêa 1968

Upogebia omissa Gomes Corrêa, 1968

Upogebia omissa Gomez Corrêa, 1968:98, figs. 1–15, 28, 29.—Fausto-Filho, 1970:58 [distrib.].—Coêlho, 1970:56 [estuarine distrib.].—Coêlho et al., 1970:508 [habitat].—Coêlho and Ramos-Porto, 1987:35 [key], 36 [Brazilian distrib.].

Upogebia (Upogebia) sp. B, Coêlho, 1971:231.—Coêlho and Ramos, 1972:162.

Upogebia (Upogebia) omissa.—Coêlho and Rattacaso, 1988:383.

MATERIAL EXAMIMINED.—U.S.A.: Florida: FDNR EJ68027, 1 , Pinellas Co., S end of Dunedin wreckage drop under limestone rocks, 28°00′02″N, 83°52′06″W, 8.5 m (28 ft), rotenone and dipnet, M.A. Moe, Jr., and T.F. Maloney, 15 May 1968.

DOMINICAN REPUBLIC: USNM 251235, 1 , 2 cephalothoraxes, Playa de Monte Cristi, 19°52.3′N, 71°39.5′W, hard substrate along patio wall pounded by waves on seaward side of hotel, M.L. Jones, sta 26, 22 Feb 1969.

PUERTO RICO: USNM 251236, 1 , Parguera, Lajas, West Maguey Id., Gooding and Humes, 6 Aug 1959.

PANAMA: USNM 251237, 1 , Colon, Limon Bay, Fort Randolph near base of E jetty, 0–1.5 m, Thalassia, mud, some rock, low flood tide, 29°C, 30 ppt, ichthyocide, Panama Survey, C.E. Dawson 1650, M.L. Jones, Panama Survey sta 153-2, 3 Nov 1973; USNM 251238, 2 ,1 , Limon, Fort Randolph at base of E Jetty, 09°23.1′N, 79°53.46′W, sieving bare sand patch beyond Thalassia, ∼1.5 m (5 ft) deep, Panama Survey sta 153-3, Jones and Dawson, 3 Nov 1973.

COLOMBIA: USNM 251181, 3 ,8 (6 ovig.), south coast of Bahía de Barbacoas, Caribbean coast, “Colombiana de Acuicultura” shrimp ponds 1 and 5, with shovel, S. Nates, 13 Dec 1991.

VENEZUELA: USNM 251727, 1 , Isla Margarita, La Isleta, on inner side of peninsula, thick sticky black mud overlain with about 5 mm oxidized layer, slight H2S odor, M.L. Jones, sta 78-1-1, 13 Jan 1978; USNM 251728, 1 , 2 , 1 juv.?, Isla Margarita, <1 m, dark gray well-sorted sand and shell frags., H2S odor, M.L. Jones, sta 78-1-2, 13 Jan 1978; USNM 251729, 1 , Isla Margarita, Boca del Río, 50 m E Mangrove Island N of lab buildings, bare sand in Thalassia beds, M.L. Jones, sta M-12, 17 Feb 1977.

TRINIDAD: RMNH 14981, 1 , 7 (1 ovig.), mouth of Diego Martin River, dug from mangrove detritus, one specimen with bopyrid parasite, H.O. von Hagen, 6 Jan 1966; USNM 7661, 2 , 1 , shore, R/V Albatross, no sta no. given, 30 Jan–2 Feb 1884; USNM 120489, 2 (1 ovig.), Coroni Swamp, Blue River mouth, holes in mud, P.R. Bacon, B.14, 4 Aug 1966.

BRAZIL: Ceará: MZUSP 8054, 1 , Ponta do Trapia, Camocim, Paulo Young, 6 Aug 1982. Rio Grande do Norte: MZUSP (unnumbered), 2 , 3 ovig., Natal, nursery of shrimp project, 27 Jan 1979. Paraíba: USNM 25793, 2 ,5 (1 ovig.), Mamanguape stone reef, A.W. Greeley, Branner-Agassiz Expedition, 22–23 Jun 1899; USNM 25794, 1 , Rio Paraíba, on mangroves, Branner-Agassiz Expedition, A.W. Greeley, 21 Jun 1899; USNM 25795, 1 , Contello Bay, A.W. Greeley, Branner-Agassiz Exped., 27 Jun 1899; USNM 222054, 1 , 1 (ovig.), João Pessoa, Ponta do Cabo Branco, intertidal, M.L. Christoffersen, 6 Oct 1969; USNM 222056, 1 (ovig.), Cebedelo, Rio Paraíba do Norte estuary, M.L. Christoffersen, 15 Feb 1980. Bahia: USNM 222053, 1 , Prado Praia do Tororo, intertidal, M.L. Christoffersen, 12 Oct 1982; USNM 222058, 1 (ovig.), between Ponta Imbacuaba and Cumuruxtiba, corraline reef intertidal, M.L. Christoffersen, J.S. Mourão, F.J. Mein, 4 Oct 1982. Espírito Santo: MZUSP 8615, 1 , 1 , Santa Cruz, H.R. Costa, 8 Jul 1970. Rio de Janeiro: MZUSP 8617, 2 , Ilha da Marambaia, 1973; RMNH 28667, 1 , 2 , Septiba, H.R. da Costa, Apr 1958. São Paulo: RMNH 28664, 1 , 2 ovig., São Francisco, taken at night from under stones, H.R. da Costa, Feb 1961; RMNH 28665, 6 , 2 , fragments, same, near Santos, under stones, H.R. da Costa, Jul 1961. Paraná: MZUSP (unnumbered), 2 , 2 (1 ovig.), Isthmus of the Ilha de Canòbá, with Phragmatopoma, S.A. Rodrigues, 23 Mar 1978. Santa Catarina: RMNH 200A, 5 juvs., B.N. Basemente?, 10 Mar 1960; RMNH 206A, 1 ; USNM 251242, 1 , 2 , Ponta da Cruz, São Francisco, W.L. Schmitt, 29–31 Oct 1925; USNM 251408, 17 , 25 (14 ovig.), São Francisco, W.L. Schmitt, sta 45–46, 28–29 Oct 1925.

DIAGNOSIS.—Projections to either side of rostrum ending in acute spine. Postocular spine present. Abdominal stenites usually armed with ventral spines. T subrectangular. Carpus of cheliped usually with 2 strong spines on mesiodistal margin, sometimes with 1 strong spine and 1 smaller spine above it. P2 with proximal mesioventral spine and 1 or 2 distodorsal spines on merus; P3 with 1 or 2 distodorsal spines on merus; merus of P4 almost always with ventral spines.

DESCRIPTION.—Rostrum triangular; short, straight, or slightly downcurved, tip exceeding eyestalks in normal position; dorsal pair of strong subapical spines followed on each side by 2–3 spines and often separated from them by wide interval; posteriorly divergent lateral ridge bearing crest of 10–12 or more spines, strongest on process lateral to rostrum and diminishing posteriorly. Shoulder lateral to cervical groove bearing 1–4 spines, tubercles, or granules below intersection with thalassinidean line, and sometimes spine or granule above this juncture. Postocular spine present, occasionally doubled.

Abdominal sternites usually armed with ventral spines, tending to increase in prominence with age.

T with transverse proximal ridge continuous with inconspicuous lateral ridge at each side, transverse sector usually bearing single row of obsolescent granules.

Eyestalk stout, deepest at about midlength, concave dorsally, convex ventrally, obliquely erect in repose; prominent terminal cornea narrower than diameter of stalk.

A1 peduncle reaching to about proximal of terminal article of A2 peduncle, its proximal 2 articles together slightly longer than terminal article.

A2 peduncle with about its length extending beyond tip of rostrum; article 2 bearing hooked subdistal ventral spine; scale oval, moderate in size.

Mxp3 bearing epipod.

Epistomial projection rather broad in lateral view, bearing 2 small apical spines, lower one occasionally obsolescent.

Chelipeds with coxa usually bearing slender spine on mesiodistal margin. Ventral margin of ischium bearing 2 unequal spines or single spine. Merus with row of 4–7 strong spines on ventral margin (occasionally spine at distal end of row reduced); single subdistal dorsal spine reaching level of postocular spine. Carpus trigonal, shallow longitudinal groove laterally, usually with strong spine at anterior ventrolateral corner preceded by 1 or more remote obsolescent spines; mesiodorsal crest of almost uniform small spines behind prominent spine on anterior margin, sometimes remote from it, and partly obscured by setae in proximal part of row, 3–4 short stout spines obscured by setae on anterodorsal margin mesial to articulation with propodus; 1 strong spine near middle of anteromesial margin, smaller spine dorsal to it, and very strong spine below at distoventral corner. Chl about 2.5–2.7 times chh in male, more slender in female; spineless dorsal ridge terminating anteriorly near stout subdistal spine mesial to it; mesiodorsal row of small spines, more erect proximally than distally, becoming obsolescent at about length; below this a row of obsolescent tubercles leading toward distomarginal spine below mesial dactylar condyle, margin below it bearing 1–3 small spines, row of small to obsolescent spines on lower mesial surface, low transversely arcuate ridge near proximomesial corner, and occasionally a tubercle near midlength on mesial side of ventral keel; lateral dactylar condyle with distomarginal spine below. Fixed finger shorter than dactyl and more slender, slightly downcurved in middle and tapering to slender tip, 3–6 teeth on proximal prehensile edge, sometimes clustered in 2 groups of 2 or 3 spines. Dactyl longitudinally ridged and setose; corneous tip in male preceded on prehensile edge (if not worn) by subdistal tooth, 2nd tooth at length often opposing tip of fixed finger, then crest of about 7 closely crowded small teeth increasing proximally to larger tooth at length, basal section toothless, concave mesial surface bearing 2 rows of pearliform tubercles in large male; corneous tip in female preceded by more or less straight prehensile edge, strong tooth at length opposing tip of fixed finger, section proximal to this with obscure small teeth, then large tooth at length, basal section toothless; curved extensor surface bearing 2–4 small tubercles proximally.

P2 reaching about to distal of palm; carpus with obsolescent distodorsal spine and tiny acute subdistal ventral spine; merus with 2 slender rather widely separated subdistal dorsal spines (distalmost rarely missing) and strong proximal mesioventral spine; coxa with variably expressed proximal spine and smaller distal spine mesially. Merus of P3 with 2 slender distodorsal spines, spine on distal margin smaller than subdistal one and occasionally missing, slender ventral spines on proximal and cluster of spines or spiniform granules ventrolaterally; ischium usually with single ventral spine but sometimes unarmed, coxa with spine lateral to gonopore. P4 usually with row of strong ventral spines on merus and ventral spine on ischium, but spines variable.

U with acute spine on protopod above base of mesial ramus; lateral ramus bearing blunter spine on mesial rib proximally; both rami with sharp granules along distal margin.

MEASUREMENTS (in mm).—, acl 7.9, cl 12.2, chl 9.0, chh 3.6; , same, 7.7, 12.2, 6.4, 2.4.

TYPE LOCALITY.—Barra do Ceará, Fortaleza, Brazil.

KNOWN RANGE.—Confined to material examined.

HABITAT.—The species occurs from around the low tide mark to 9 m depths on reefs and in estuaries, generally under rocks (Coêlho and Rattacaso, 1988).

Shallow-waters (0-100 m)

Soft bottom (mud or sand)