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Home >> Checklist: Caribbean Amphipoda of Panama >> Previous version of Key >> Identification Key (new version): Caribbean Amphipoda of Panama Filter/Display Options Family/Genus Filter: Sort by: Display Common Names Display images: Amphipoda Telson entire/cleft cleft notched entire emarginate Urosome segments segments 2 and 3 fused segments 1-3 separate segments 1-2 fused Eyes (number of) 2 pairs of eyes 1 pair of eyes Eyes absent Gnathopod 2 chelation Simple Subchelate Pseudochelate Carpochelate Chelate Gnathopod 1 (present/absent) Present, well developed Present, vestigial Coxae 1-4 (length/breadth) As long as broad Broader than long Longer than broad Pereonites (cuticle) Dorsally carinate Smooth Gnathopod 2 ischium (article 3) Not elongate Elongate Pleonites 1-3 (cuticle) with strong dorsal teeth/processes dorsally smooth Uropod 3 (presence) Present, vestigial Present, well developed Uropod 3 (rami) Biramous Uniramous No rami Antenna 1 accessory flagellum (present/absent) Absent or Vestigial Well developed Coxa 1-3 relative size Coxa 1 and/or 2 reduced or vesitigial Coxa 3 and 4 reduced All subequal in size Coxa 1 larger than 2 or 3 Coxa 1-3 shorter than 4 Urosomite 1 (length) Not elongated Elongate Coxa 4 (size) Extensively broadened Not extensively broadened Antenna 1 (length) Longer than antenna 2 Subequal to antenna 2 Shorter than antenna 2 Pereopod 7 (length) Distinctly longer than pereopod 6 Subequal or slight unequal in length with pereopod 6 Pereopod 7 (structure) Not elongate, distal articles not unusually slender Elongate, distal articles extremely slender Pereopods 5-7 fossorial (setae) with many rows of facial and marginal setae with several spine groups with marginal plumose setae distally with few robust or slender setae with many marginal slender setae Gnathopod 2 (sexual dimorphism/size) not strongly sexually dimorphic or similar in size to gnathopod 1 strongly sexually dimorphic or greatly enlarged compared to gnathopod 1 Gnathopod 1 (size) similar in size to gnathopod 2 smaller than gnathopod 2 larger than gnathopod 2 Head, Rostrum absent, vestigial, or short elongate, hoodlike, or laminar Pereopod 5-7 bases (size) weakly expanded not expanded broadly expanded Uropod 2 (rami) Uniramous Biramous Antenna 1 peduncle with sparse setae with many slender setae with many robust and slender setae Mandible molar absent present Uropod 1 peduncle With basofacial spine Without basofacial spine Uropod 3 outer ramus apical ornamentation with recurved spines without recurved setae or spines Antenna 2 peduncle article 4 without strong distal process(es) with strong distal process(es) Male gnathopod 2 2nd gnathopods similar, subequal in size 2nd gnathopods dissimilar, extremely unequal in size Lower lip inner lobes absent inner lobes present Uropod 3 outer ramus 2-articulate 1-articulate P5-7 prehensile One or more prehensile None prehensile Urosome (cuticle) with serration(s) smooth Caribbean Amphipoda of Panama Kristine N. White Species Count: 109 Ampeliscidae Ampelisca agassizi Ampelisca bicarinata Ampelisca burkei Ampelisca cristata Ampelisca schellenbergi Amphilochidae Apolochus sp. A Ampithoidae Ampithoe longimana Ampithoe marcuzzii Ampithoe ramondi Pseudamphithoides incurvaria Aoridae Bemlos kunkelae Bemlos longicornis Bemlos spinicarpus Bemlos unicornis Globosolembos francanni Globosolembos smithi Plesiolembos rectangulatus Atylidae Nototropis minikoi Bateidae Batea carinata Batea catharinensis Batea cuspidata Batea sp. Chevaliidae Chevalia anomala Chevalia carpenteri Chevalia convexa Colomastigidae Colomastix bousfieldi Colomastix falcirama Colomastix gibbosa Colomastix halichondriae Colomastix heardi Colomastix irciniae Colomastix janiceae Colomastix tridentata Dexaminidae Dexaminella sp. A Polycheria josephensis Eusiridae Tethygeneia longleyi Hadziidae Dulzura schoenerae Hyalidae Hyale nigra Protohyale macrodactyla Ischyroceridae Caribboecetes justi Cerapus cudjoe Ericthonius brasiliensis Leucothoidae Anamixis cavatura Anamixis vanga Leucothoe ashleyae Leucothoe barana Leucothoe flammosa Leucothoe garifunae Leucothoe kensleyi Leucothoe laurensi Leucothoe saron Leucothoe tunica Leucothoe ubouhu Leucothoe wuriti Liljeborgiidae Idunella barnardi Liljeborgia bousfieldi Listriella barnardi Lysianassidae Aruga holmesi Aruga oculata Concarnes concavus Lysianassa brasiliensis Lysianopsis concavus Lysianopsis hummelincki Shoemakerella cubensis Maeridae Ceradocus sheardi Ceradocus shoemakeri Elasmopus balkomanus Elasmopus elieri Elasmopus levis Elasmopus longipropodus Elasmopus pocillimanus Elasmopus thomasi Meximaera diffidentia Quadrimaera ceres Quadrimaera cristianae Quadrimaera miranda Quadrimaera quadrimana Quadrimaera sarae Quadrimaera yemanjae Megaluropidae Gibberosus devaneyi Gibberosus myersi Resupinus spinicaudatus Melitidae Dulichiella anisochir Dulichiella lecroyae Melita planaterga Melphidippidae Hornellia tequestae Oedicerotidae Hartmanodes nyei Synchelidium purpurivitellum Phliantidae Pariphinotus seclusus Photidae Latigammaropsis atlantica Photis sp. C Photis sp. F Photis trapherus Posophotis seri Phoxocephalidae Eobrolgus spinosus Harpinia sp. A Harpiniopsis epistomata Metharpinia floridana Proharpinia antipoda Podoceridae Podocerus brasiliensis Pontogeneiidae Eusiroides yucatanensis Nasageneia bacescui Sebidae Seba tropica Stenothoidae Stenothoe gallensis Stenothoe georgiana Stenothoe minuta Stenothoe valida Synopiidae Garosyrrhoe bigarra Talitridae Mexorchestia carpenteri
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