Edotia dotiae Santiago & Pereira, 2026, sp. nov.

Edotia dotiae sp. nov. Figs 1, 2, 3, 4, 5, 6, 7, 8, 9 Synonymy. Edotia n. sp. “A” Pereira 2017: 61, fig. 30. Material examined. Holotype: Argentina – Santa Cruz Province, Puerto Deseado • 1 brooding ♀ (4.3 mm); 47°43.76'S, 65°50.26'W, 15 m depth; 23 Jan. 2007; I. Chiesa, B. Doti, D. Roccatagliata leg.; Sta. 20, small dredge, PNA Río de la Plata; MACN-In 44878. Paratypes: Argentina • 1 non-brooding ♀ (4.4 mm), 4 mancas and juvs (1.3–2.8 mm), same data as for holotype; MACN-In 44879. – Santa Cruz Province, Puerto Deseado • 1 adult ♂ (4.7 mm), 2 non-brooding ♀♀ (4.0– 4.4 mm); 47°45.42'S, 65°52.63'W, 2–15 m depth; 7 Feb. 2006; R. Centurión, I. Chiesa, B. Doti, C. Muniain, D. Roccatagliata leg.; Sta. 11, small dredge, semi-rigid boat Los Vikingos; MACN-In 44880. Additional material. Argentina – Santa Cruz Province, Puerto Deseado • 1 manca (1.6 mm); 47°48.89'S, 65°51.25'W, 15 m depth; 23 Jan. 2007; I. Chiesa, B. Doti, D. Roccatagliata leg.; Sta. 15, small dredge, PNA Río de la Plata; DBBE-Cru 1581. • 1 non-brooding ♀ (4.0 mm), 3 mancas (2.3–2.9 mm); 47°45.41'S, 65°52.64'W, 2–15 m depth; 07 Feb. 2006; R. Centurión, I. Chiesa, B. Doti, C. Muniain, D. Roccatagliata; Sta. 12, small dredge, semi-rigid boat Los Vikingos; DBBE-Cru 1582. • 1 adult ♂ (4.0 mm), 2 mancas (1.7–3.0 mm); 47°45.42'S, 65°52.60'W, 2–15 m depth; 7 Feb. 2006; R. Centurión, I. Chiesa, B. Doti, C. Muniain, D. Roccatagliata leg.; Sta. 13, small dredge, semi-rigid boat Los Vikingos; DBBE-Cru 1583. – Chubut Province, Comodoro Rivadavia • 1 adult ♂ (4.2 mm), 1 manca (2.3 mm); 45°51.36'S, 67°27.13'W, 13.8 m depth; 5 Feb. 2006; R. Centurión, I. Chiesa, B. Doti, C. Muniain, D. Roccatagliata leg.; Sta. 6, Rauschert sledge, tugboat Titan; DBBE-Cru 1584. – Tierra del Fuego Province, Cabo San Pío • 6 mancas and juvs (2.6–3.0 mm); 55°03.00'S, 67°37.00'W, 30–35 m depth; 29 Sep. 2002; D. Zelaya leg.; Sta. SP, small dredge, ARA Alférez Sobral; DBBE-Cru 1585. Diagnosis. Body with several discrete patches of fluted tubercles. Head with frontal lamina triangular, with 2 anterodorsal lobes. Pleonite 1 indicated by lateral epimera. Pleotelson lateral margins concave, distally protruding into a long apex (apex 0.3 times as long as pleon). Flagellum of antenna composed of 4 short articles. Endopod of uropod elongated, reaching the tip of the pleotelson apex. Description. Body description is based on the holotype female (MACN-In 44878) and the appendages on the paratype female (MACN-In 44879 - a). Body (Figs 1, 2, 9) flattened, widest at pereonites 3 and 4. Body surface and lateral margins covered with short setae and discrete patches of fluted tubercles (Fig. 9 A – D). Head length 0.5 width, with 1 wide middorsal elevation ornamented with 2 patches of fluted tubercles, and 2 anterodorsal lobes with fluted tubercles; lateral margins rounded, with small eyes; frontal margin straight, with 2 pointed lateral projections. Frontal lamina triangular, visible in dorsal view. Pereonite 1 similar in length to pereonites 5–7; pereonites 2 and 3 subequal in length; pereonite 4 longest; pereonites 5–7 becoming progressively shorter and narrower. Dorsal surface of pereonites 1–7 with a shallow carina close to posterior margin, covered with fluted tubercles. Lateral margin of pereonite 1 with square anterolateral angle; pereonites 2–7 rounded; directed anteriorly in pereonites 1–3, laterally in pereonite 4, and posteriorly on pereonites 5–7. All pleonites fused with the pleotelson; pleonite 1 indicated by lateral epimera. Pleotelson lateral margins concave, distally protruding into a long apex (apex 0.3 times as long as pleon). Antennula (Fig. 3 A) with 3 peduncular and 3 flagellar articles; peduncular article 1 similar in length to flagellar article 2, with 2 microsetulate setae; article 2 0.6 times as long as article 3, with 3 broom and 2 microsetulate setae; article 3 longest, with 3 microsetulate setae. Flagellar article 1 forming a short ring, with 3 broom setae; article 2 longest, with 4 aesthetascs and 4 microsetulate setae; last article smallest, knob-like, with 1 aesthetasc and 4 microsetulate setae. All articles covered with short setae. Antenna (Fig. 3 B) with 5 peduncular and 4 flagellar articles; first two peduncular articles 0.5 times as long as article 5, article 1 glabrous, article 2 with 2–4 microsetulate setae; article 3 0.7 times as long as article 5, with 3–6 microsetulate setae; article 4 subequal in length to article 5, with 0–2 broom and 4–6 microsetulate setae; article 5 longest, with 5 broom and 6 microsetulate setae. Flagellar article 1 longest article, with 9 microsetulate setae; article 2 and 3 less than 0.3 times as long as article 1, with 6 microsetulate setae each; last article smallest, knob-like, with 8 microsetulate setae. All articles covered with short setae. Mandibles (Fig. 3 C – E) asymmetrical, without palp. Incisor processes with 4 strong sclerotized teeth. Molar processes with grinding surface and indented margins, with 1 seta on lower surface. Left lacinia mobilis with 3 rounded teeth and 2 stout setae; right lacinia mobilis bifid, apically serrated; spine row comprising 3 seta-like structures. Maxillula (Fig. 4 A) lateral lobe with 10 stout setae distally, some of them serrated, with simple and microsetulate setae laterally. Inner lobe missing in dissection. Maxilla (Fig. 4 B) outer lobe with 4 serrate setae distally. Middle lobe with 5 serrate setae distally. Inner lobe with 2 stout setulated setae, 2 thin distally setulated setae and 4 simple setae rounded tip. Inner margin with 5 simple setae. Maxiliped (Fig. 4 C) palp with 3 articles; article 1 shortest; article 2 trapezoidal with 12 microsetulate setae; article 3 largest, distal margin convex, with 16 microsetulate setae. Epipod oval, narrowing distally, reaching proximal margin of palp article 3. Basal endite slender, anterior surface with 3 plumose setae distally, outer margin with 5 microsetulate setae, mesial margin with 1 coupling seta. All maxilliped covered with setules. Pereopod I (Figs 5 A, 5 B, 10 A, 10 B) subchelate, basis longest article, with 1 or 2 broom and 9 or 10 microsetulate setae; ischium 0.6 times as long as propodus, with 7 microsetulate setae; merus 0.4 times as long as propodus, with 8 or 9 microsetulate setae; carpus shortest article, with 10 microsetulate setae on flexor margin; propodus oval, with 9 microsetulate setae and cutting teeth on flexor margin, 4 microsetulate setae close to flexor margin, 1 broom and 6 microsetulate setae on extensor margin; with 6 robust biserrate setae on inner surface; dactylus (excluding claws) 0.5 times as long as propodus, with cutting teeth on flexor margin and several microsetulate setae on both margins. Pereopods II – IV (Fig. 5 C – E) basis longest article, with 2 broom and 11–20 microsetulate setae; ischium 0.8 times as long as propodus, with 8–13 microsetulate setae; merus 0.5 times as long as propodus, with 11–13 microsetulate setae; carpus 0.5–0.6 times as long as propodus, with 8–12 microsetulate setae; propodus oval, with 1 broom seta dorsodistally, 5–7 microsetulate setae on extensor margin, 8 or 9 microsetulate setae on flexor margin; dactylus (excluding claws) 0.4–0.6 times as long as propodus, with 2 distal claws, secondary unguis 0.4 times as long as primary unguis, with several microsetulate setae on both margins. Pereopods V – VII (Fig. 6 A – C) basis longest article, with 1 broom and 7–14 microsetulate setae; ischium 0.7 times as long as propodus, with 5–11 microsetulate setae; merus 0.4–0.5 times as long as propodus, with 6–11 microsetulate setae; carpus 0.5 times as long as propodus, with 1 broom and 6–9 microsetulate setae; propodus oval, with 1 broom seta distally on extensor margin, with 7–9 microsetulate setae on extensor margin and 6–8 microsetulate setae on flexor margin; dactylus (excluding claws) 0.5–0.6 times as long as propodus, with 2 distal claws, secondary unguis 0.3 times as long as primary unguis, with several microsetulate setae on both margins. Pleopod I (Fig. 7 A) protopod quadrangular, with 5 coupling setae on inner margin. Endopod subequal in length to exopod, with 7 plumose setae on distal margin; exopod with 1 plumose seta on inner margin and 7 plumose setae on distal margin. Both rami with setules on lateral margins. Pleopod II (Fig. 7 B) protopod quadrangular, with 3 coupling setae on inner margin. Endopod subequal in length to exopod, with 10 plumose setae on distal margin; exopod with 7 plumose setae on lateral margin, 11 plumose setae on distal margin, and setules on both margins. Pleopod III (Fig. 7 C) protopod quadrangular, with 1 simple seta. Endopod subequal in length to exopod, with 0 or 1 simple seta and 2 or 3 plumose setae on distal margin. Exopod glabrous. Pleopods IV and V (Fig. 7 D, E) protopod quadrangular, glabrous. Endopod subequal in length to exopod, with 2 or 3 microsetulate setae on lateral margin. Exopod glabrous. Uropod (Fig. 7 F) uniramous, reaching to pleotelson apex. Protopod, mesial surface with 6 microsetulate setae, 2 or 3 plumose setae on inner margin, and setules on outer margin. Endopod 0.5 times as long as protopod, mesial surface with 6 broom setae and 5 or 6 microsetulate setae, 2 microsetulate setae on distal tip, and both margins setulated. Paratype male (MACN-In 44880 - a) as female except for: Antennula (Fig. 8 A) with 3 peduncular and 3 flagellar articles; peduncular article 1 about 0.5 times as long as article 3, with 1 or 2 microsetulate setae; article 2 0.6 times as long as article 3, with 4 broom and 2 microsetulate setae; article 3 longest, with 1 broom and 11 microsetulate setae. Flagellar article 1 forming a short ring, with 3 broom setae; article 2 0.8 times as long as peduncular article 3, with 9 or 10 aesthetascs and 5 microsetulate setae; last article smallest, knob-like, with 3 microsetulate setae. All articles covered with short setae. Penes (Fig. 8 B) fused basally as a penial plate but divided over most length. Pleopod I (Fig. 8 C) p