taxonID	type	description	language	source
50C8FCA443B554588D43783FC14EF903.taxon	description	Figs 1, 5 A – H, 6 A – C, 7 A, B	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
50C8FCA443B554588D43783FC14EF903.taxon	diagnosis	Diagnosis. Carapace dorsally covered with scales, shorter and more abundant on gastric region, wider scales posteriorly; cervical grooves distinct (Fig. 6 A – C). Rostrum moderately broad, dorsally elevated and with median carina, distally trifid. Frontal margin slightly concave behind ocular peduncle. Orbit slightly excavated, outer orbital angle with small blunt lobe. Anterolateral angle armed with broad spine. Branchial margin armed with 3 broad spines. Abdominal tergites unarmed. Telson divided into 8 plates. Sternite 3 anterolaterally rounded, anterior margin with median lobe flanked by 2 lobes, sternite 4 broadly subtriangular. Eyes unarmed, movable, epistomial spine present, cornea globular, elongated. Article 1 of antennule with dorsolateral and distolateral spines. Article 1 of antenna with strong distomesial spine and distolateral spines. Mxp 3 merus serrated but without distinct spines on flexor margin, extensor margin with short spine. P 1 stout, length less than twice PCL; meri armed with distal spines; carpi, palm and fingers unarmed; fixed finger without denticulate carina on distolateral margin; dactylus dorsally carinate. P 2 – 4 stout; meri carinate on dorsal margin; dactyli slender, distally curving, flexor margin with 11 – 12 teeth decreasing proximally along entire length. Epipods present on P 1 and 2.	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
50C8FCA443B554588D43783FC14EF903.taxon	distribution	Distribution. North coast of Cuba, Gulf of Mexico, Atlantic coast of Florida; 457 – 1107 m.	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
27F7770DF67B500BA2FA4F5C4D8F546B.taxon	description	Figs 1, 2 A – J, 3 A – C, 4 A – D	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
27F7770DF67B500BA2FA4F5C4D8F546B.taxon	etymology	Etymology. Named after Charles “ Chuck ” Messing, recently deceased, in honor of his dedication to and passion for ocean exploration, and his “ larger than life ” entertaining and kind personality. This is in recognition of his significant contributions to the biology, natural history and taxonomy of echinoderms, crustaceans and other invertebrates.	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
27F7770DF67B500BA2FA4F5C4D8F546B.taxon	diagnosis	Diagnosis. Carapace dorsally covered with short setae, pilose, gastric, hepatic and anterior branchial areas smooth, posterior branchial area with short scales or scattered granules (Fig. 3 A – C). Rostrum moderately broad, dorsally elevated and with median carina, distally trifid. Frontal margin slightly concave behind ocular peduncle. Orbit excavated, orbital angle above antennal peduncle produced into sharp spine. 1 – 3 small spines close to anterolateral angle. Anterolateral spine strong. Branchial margin armed with 2 strong spines. Abdominal tergites unarmed. Telson divided into 10 plates. Sternite 3 anterolaterally rounded, anterior margin with median lobe flanked by 2 lobes, sternite 4 broadly subtriangular. Eyes unarmed, movable, epistomial spine present, cornea globular, elongated. Article 1 of antennule with dorsolateral and distolateral spines. Article 1 of antenna with strong distomesial spine and distolateral spines. Mxp 3 merus with 3 strong spines on flexor margin, small distal spine, extensor margin with 4 spines. P 1 stout, length less than twice PCL; meri and carpi armed with distal spines; palm and fingers unarmed; fixed finger without denticulate carina on distolateral margin; dactylus dorsally carinate. P 2 – 4 stout; meri carinate on dorsal margin; dactyli slender, distally curving, flexor margin with 6 – 8 small teeth decreasing proximally along entire length. Epipods present on P 1 and 2.	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
27F7770DF67B500BA2FA4F5C4D8F546B.taxon	description	Description. Carapace: Slightly broader than long, widest at midlength; moderately convex from side to side. Dorsal surface pilose; gastric, hepatic and anterior branchial areas smooth, densely covered with short setae; posterior branchial area with short scales or scattered granules (Figs 2 A, 3 A, C); cardiac and intestinal regions covered with larger scales, each scale with few short setae. Regions well delineated by deep furrows including distinct anterior and posterior cervical grooves. Gastric region slightly elevated. Cardiac region divided by a transverse furrow in anterior and posterior cardiac regions. Posterior margin unarmed, preceded by elevated ridge. Rostrum moderately broad, dorsally elevated, width 0.2 – 0.3 × anterior width of carapace, directed strongly upwards, dorsally carinate, distally trifid, with strong median spine twice as long as lateral spines (Fig. 2 A), 0.4 × PCL, 1.3 – 1.8 × as long as broad. Frontal margin concave behind ocular peduncle, orbital angle above antennal peduncle produced into sharp spine, reaching or surpassing distal margin of cornea; spine below antennal proximal mesial angle, ventral to frontal margin, close to epistomial region; 1 – 3 small spines close to anterolateral spine. Lateral margins slightly convex, converging posteriorly; anterolateral spine sharp; anterior branchial margin with 1 strong spine; 1 strong branchial spine just behind posterior branch of cervical groove. Pterygostomian flap surface covered with granules and scales, anteriorly narrowly rounded. Sternum: 0.9 × as long as broad, maximum width at sternite 7. Sternite 3 broad, 3.0 × wider than long, anterolaterally rounded, anterior margin with median lobe flanked by 2 subacute lobes. Sternite 4 narrowly elongated anteriorly; surface depressed in midline, with scattered short scales; greatest width 2.3 × that of sternite 3, 1.7 × wider than long. Pleon: Unarmed; tergite 2 with 2 elevated transverse ridges, lateral parts of dorsal surfaces covered with granules and scales; tergites 3 – 6 with only anterior; tergite 6 with weakly produced posterolateral lobes and nearly transverse posteromedian margin. Telson composed of 10 plates, 1.5 × as wide as long. Eye: Eyestalk movable, partially concealed by rostrum; peduncle with few granules, shorter than cornea length; cornea, elongated, longer than peduncle, ovoid; lateral surface contiguous to epistomial spine, epistomial spine ventral to frontal margin. Antennule: Article 1 of peduncle with granules on anterolateral ventral surface, armed with subequal dorsolateral and distolateral spines; distomesial margin with strong spine. Antenna: Peduncle slightly exceeding eye. Article 1 with strong distomesial and distolateral spines, each surpassing distal margin of article 2. Article 2 with distomesial and distolateral spines, distolateral spine much stronger. Article 3 armed with small distomesial and distolateral spines. Article 4 unarmed. Mxp 3: Lateral surface with few granules. Ischium as long as merus measured on extensor margin merus with 3 strong spines subequal in size and 1 smaller distal spine on flexor margin; extensor margin with 4 spines, distal spine strongest. P 1: Stout, with numerous minute granules and short scales, each scale marginally with few short setae, 1.3 × longer than PCL. Merus 2.2 × carpus length, distally with stout spines. Carpus 0.9 × longer than broad, with some short distal spines, few acute granules on dorsal surface. Palm unarmed, stout, slightly longer than carpus, 1.2 × longer than broad. Fingers unarmed, 1.2 × longer than palm, opposing margins nearly straight, not gaping, spooned; fixed finger without denticulate carina on distolateral margin, mobile finger with dorsal carina. P 2 – 4: Stout, pilose, with short scales and granules, cylindrical in cross-section, slightly decreasing in size posteriorly. P 2 merus stout, overreaching tip of P 1, 0.6 × carapace length, 2.7 × longer than high, equal to 1.1 × length of P 2 propodus. P 2 – 4 meri decreasing in length posteriorly (P 3 merus 0.9 × length of P 2 merus, P 4 merus 0.85 × length of P 3 merus); extensor margin carinate, with small granules along entire length, distal part flattish ending in thick spine; flexor margin granulate; P 2 – 4 carpi each with 1 thick distal spine on extensor margin, lateral surface with granulated carina; P 2 – 4 propodi 4.0 – 5.0 × as long as high, triangular in cross-section, unarmed. P 2 – 4 dactyli 0.5 × length of propodi; distal claw short, moderately curved; flexor margin distally curved, with 6 – 8 dactylar teeth on entire length, each tooth with slender corneous spine, ultimate tooth closer to penultimate tooth than to dactylar angle. Epipods: Present on P 1 and 2. Coloration: Carapace, P 1 – 4 and chelipeds entirely light to reddish orange. Distal parts of rostrum, articles and spines whitish (Fig. 4 A – D).	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
27F7770DF67B500BA2FA4F5C4D8F546B.taxon	distribution	Distribution. Curaçao and East coast of Florida; 173 – 264 m.	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
C1C55D3224D75CD884F1ECA25BFDC969.taxon	description	Figs 1, 7 C, 8 A, B	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
C1C55D3224D75CD884F1ECA25BFDC969.taxon	diagnosis	Diagnosis. Carapace and abdomen densely covered with rounded granules (Fig. 8 A, B), slightly longer than broad; with 2 epigastric protuberances; dorsal regions well delimited by furrows. Rostrum spade-shaped in dorsal view, constricted between eyes. Frontal margin slightly concave behind ocular peduncle, transverse between antenna and anterolateral angle of carapace. Lateral margins unarmed; subparallel, anterolateral corner rounded. Sternum longer than wide, maximum width at sternite 6 or 7; sternite 3 moderately broad, twice wider than long, width about half that of sternite 4; anterior margin of sternite 4 widely triangular. Abdomen unarmed; telson composed of 8 plates. Eyes small, fused to rostrum, without eye-spines; granulate overgrowths covering proximo-mesial part of cornea dorsally and ventrally; cornea globular. Mxp 3 merus with granules on flexor margin. P 1 more than twice PCL. P 2 – 4 stout, with protuberances; extensor margins of articles not cristate; propodi not expanded distally; dactyli moderately curved distally, flexor margin with teeth decreasing in size proximally, each tooth with slender corneous spine. P 2 not reaching end of P 1. Epipods on P 1. Coloration: Carapace and chelae light orange. Abdomen white. P 1 – 4 orange with white bands. Spines on P 1 – 4 and carapace epigastric protuberances white (Fig. 7 C).	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
C1C55D3224D75CD884F1ECA25BFDC969.taxon	distribution	Distribution. Known only from the type locality in Guadeloupe and the present new record from the Gulf of Mexico, West Florida Slope; 457 to 536 m depth.	en	Rodríguez-Flores, Paula C., Bracken-Grissom, Heather D., Lemaitre, Rafael, Felder, Darryl L., Nizinski, Martha S. (2025): A new squat lobster (Crustacea, Decapoda, Munidopsidae) from the western Atlantic with redescription of Munidopsis expansa Benedict, 1902 and several range extensions. ZooKeys 1248: 321-340, DOI: 10.3897/zookeys.1248.156346
