taxonID	type	description	language	source
22FD871BE3CD5E4F8136622AC911B51D.taxon	description	Figs 4, 5, 6 A, B, 7	en	Rodríguez-Flores, Paula C., Ambler, Julie W., Nizinski, Martha S. (2024): Integrative taxonomy reveals a new species of deep-sea squat lobster (Galatheoidea, Munidopsidae) from cold seeps in the Gulf of Mexico. Zoosystematics and Evolution 100 (4): 1243-1257, DOI: 10.3897/zse.100.127169
22FD871BE3CD5E4F8136622AC911B51D.taxon	etymology	Etymology. In Inuit mythology, Sedna is the goddess of the sea and marine animals, also known as the Mother or Mistress of the Sea. The specific name is substantive in apposition.	en	Rodríguez-Flores, Paula C., Ambler, Julie W., Nizinski, Martha S. (2024): Integrative taxonomy reveals a new species of deep-sea squat lobster (Galatheoidea, Munidopsidae) from cold seeps in the Gulf of Mexico. Zoosystematics and Evolution 100 (4): 1243-1257, DOI: 10.3897/zse.100.127169
22FD871BE3CD5E4F8136622AC911B51D.taxon	diagnosis	Diagnosis. Carapace, excluding rostrum as long as broad, dorsal surface nearly smooth or covered with small granules. Rostrum broadly triangular, not acute at tip, ca. one-third carapace length. Frontal margin without delimited orbit, transverse. Cervical grooves distinct. Lateral margins subparallel, without distinct spines. Sternum longer than wide, maximum width at sternites 4 to 6; sternite 3 short and wide, width about half that of sternite 4. Abdomen spineless; telson with 10 plates. Eyes small, movable, and unarmed; cornea small, slightly elongated; peduncle larger than cornea. Antennular article 1 swollen laterally. Basal part of each Mxp 3 not separated by an appreciable gap; merus with 2 acute spines on flexor margin. P 1 long and slender, more than twice carapace length, longer than P 2. P 2 – 4 moderately stout; extensor margin of articles carinate; propodi not expanded distally; dactyli curved distally; flexor margin with row of 8 – 12 teeth bearing corneous spinules. Epipods absent from all pereiopods.	en	Rodríguez-Flores, Paula C., Ambler, Julie W., Nizinski, Martha S. (2024): Integrative taxonomy reveals a new species of deep-sea squat lobster (Galatheoidea, Munidopsidae) from cold seeps in the Gulf of Mexico. Zoosystematics and Evolution 100 (4): 1243-1257, DOI: 10.3897/zse.100.127169
22FD871BE3CD5E4F8136622AC911B51D.taxon	description	Description. Carapace: As long as broad, widest at posterior part; convex from side to side. Dorsal surface sparsely covered with small granules or nearly smooth, hepatic and anterior branchial areas with minute granules or smooth. Regions well delineated by furrows, anterior and posterior cervical grooves distinct. Gastric region slightly convex. Posterior margin unarmed, dorsally smooth. Rostrum spatulate, horizontally straight, 0.3 – [0.4] times carapace length, 0.2 – [0.3] times anterior width of carapace, [1.2] – 1.9 times as long as wide; dorsal surface concave, with small granules. Frontal margin straight behind ocular peduncle; outer orbital angle not produced, concave; orbit not delimited. Lateral margins straight, no spines; anterolateral angle not produced; blunt, sparsely granulate; branchial margins granulate; deep notch between hepatic and branchial margins. Epistomial spine absent. Pterygostomian flap surface covered with small granules, anterior margin blunt. Sternum: Slightly longer than broad, maximum width at sternites 4 to 6. Sternite 3 broad, [3.0] times wider than long, anterolaterally produced and often serrated; anterior margin with broad median notch flanked by 2 lobes. Sternite 4 widely elongate anteriorly; anterior margin often serrated; surface depressed in midline, smooth; greatest width [3.3] times that of sternite 3 and [2.1] times length. Abdomen: Unarmed. Tergites often with small sparse granules on all surfaces; tergites 2 – 3 each with 1 elevated transverse ridge; tergites 4 – 6 without ridges; tergite 6 with weakly developed posterolateral lobes and nearly transverse posteromedian margin. Telson composed of 10 plates; [0.7] times as wide as long. Eye: Eyestalk movable, partially concealed beneath rostrum; peduncle elongated, smooth, [2.7] times as wide as long; cornea ovoid, narrower than peduncle; length [1.3] times that of peduncle. Antennule: Article 1 of peduncle with dorsolateral and distolateral spines subequal in size; distolateral margin with denticles; distomesial margin with smaller denticles. Antenna: Peduncle usually not exceeding eye, armed marginally with denticles and granules. Article 1 with small distolateral spine, distomesial angle produced but unarmed. Article 2 unarmed or with minute distomesial and distolateral spine. Article 3 with small distomesial and distolateral spines or with prominent distal denticles. Article 4 unarmed. Mxp 3: Lateral surface with scattered granules. Ischium [1.1] times longer than merus measured on extensor margin; distal extensor margin serrated. Flexor margin of merus with 2 prominent proximal spines subequal in size and small distal spine; extensor margin with several denticles and small or large distal spine. Carpus with several denticles on dorsal surface. P 1: Slender, 2.4 – 2.8 (females) and 3.0 – [3.7] (males) times longer than PCL, cylindrical. Merus 3.0 – [3.6] times as long as carpus, with denticles and granules. Carpus [1.1] – 1.5 times longer than broad, unarmed. Palm unarmed, slender, [2.8] – 3.0 times longer than carpus, [2.5] – 2.8 times as long as broad. Fingers unarmed, smooth, [0.6] – 0.7 times longer than palm; opposable margins nearly straight, gaping, distally spoon-shaped; fixed finger without denticulate carina on distolateral margin. Heterochely present in some specimens. P 2 – 4: Moderately stout, subcylindrical, flattened in cross-section, slightly decreasing in size posteriorly; surfaces with some denticles and granules. P 2 merus moderately slender, [0.7] times PCL, nearly [3.5] times longer than high, [1.3] times length of P 2 propodus. Meri decreasing in length posteriorly (P 3 merus [0.9] length of P 2 merus, P 4 merus [0.9] length of P 3 merus); extensor margin strongly carinate, distal part ending in thick spine; flexor margin with a row of spines. Carpi with spines on each extensor margin, 2 parallel granulate carinas along dorsal side. Propodi 4.5 – 5.2 times as long as high, flattened in cross-section, with some tubercles proximally on each extensor margin; lateral surface with some small spines on proximal half; flexor margin unarmed. Dactyli moderately slender, 0.5 – 0.6 times length of propodi; distal claw short, moderately curved distally; flexor margin nearly straight, armed with 8 – 12 corneous spines. Epipods absent from pereiopods. Eggs: About 5 – 25 rounded eggs of about 1 mm each. Coloration: Carapace and abdomen orange, white stripe in midline. Eyes light orange. Pereopods orange or light orange, whitish distally.	en	Rodríguez-Flores, Paula C., Ambler, Julie W., Nizinski, Martha S. (2024): Integrative taxonomy reveals a new species of deep-sea squat lobster (Galatheoidea, Munidopsidae) from cold seeps in the Gulf of Mexico. Zoosystematics and Evolution 100 (4): 1243-1257, DOI: 10.3897/zse.100.127169
22FD871BE3CD5E4F8136622AC911B51D.taxon	distribution	Distribution. Gulf of Mexico, from 479 to 1,250 m depth.	en	Rodríguez-Flores, Paula C., Ambler, Julie W., Nizinski, Martha S. (2024): Integrative taxonomy reveals a new species of deep-sea squat lobster (Galatheoidea, Munidopsidae) from cold seeps in the Gulf of Mexico. Zoosystematics and Evolution 100 (4): 1243-1257, DOI: 10.3897/zse.100.127169
