Lauriea aurea Lee & Park, 2026, sp. nov.
Year: 2026
Type: article
Abstract: Lauriea aurea sp. nov. Figs 1, 2, 3, 4 Lauriea gardineri: Kato and Okuno 2001: 88, unnumbered fig. (record requiring verification). Korean name. Du-gal-lae-sae-u-but-i. Type material. Holotype. Republic Of Korea – Jeju Special Self-Governing Province • 1 male (pcl 2.8 mm, cw 2.8 mm); Munseom Islet; 33°13'37"N, 126°34'08"E; collected by Trimix SCUBA diving at a depth of 35 m; 31 Mar. 2018; JH Park leg.; MABIK CR 00261542. Description. Carapace: as long as broad; dorsal surface covered with long and short setae borne on numerous short ridges; with 2 epigastric spines; 1 parahepatic spine on each side; 2 protogastric spines on each side, medial pair placed side by side; 1 mesogastric spine and 1 metagastric spine on each side; 3 anterior branchial spines arranged in a triangular pattern on each side; 3 postcervical spines on each side; 2 cardiac spines arranged transversely on each side; 2 or 3 posterior branchial spines arranged longitudinally on each side; posterior transverse ridge armed with a row of 7 spines, medialmost pair placed side by side. Cervical groove indistinct. Lateral margins convex, with 7 small but distinct spines on each side, last spine mesial to lateral margin; first (anterolateral) directly lateral to lateral limit of orbit; remaining more or less distantly separated from each other; one small spine mesial to anterolateral spine. Rostrum sharply triangular, with 4 moderately incised lateral teeth, dorsal surface slightly concave, with a few long setae; length (measured from the tip to level of orbital margin) 0.4 times carapace length, and 0.8 times carapace width (measured at level of orbital margin); rostral spine and distal tooth pair with slightly convex lateral margins. Pterygostomian flap slightly rugose. Pleon: with thick, long, coarse uniramous setae. Tergites 2–4 each with 2 transverse setiferous ridges, each preceded by groove. Uropods with endopod much wider than long. Telson subdivided into 5 parts by weak sutures; posterior margin with plumose setae. Thoracic sternum: 1.1 times wider than long, widest at sternite 6. Sternite 3 with anterior margin produced, 2.9 times wider than long; sternite 4 nearly twice as wide as sternite 3 and 3.3 times wider than long. Eyes: Eyestalks elongate, 1.7 times as long as wide, reaching end of antennal peduncle, somewhat wider proximally, bearing long setae immediately proximal to cornea; cornea slightly swollen, less than half as long as non-corneal portion of eyestalk. Antennule: Article 1 with 3 distal spines: distomesial slender, distolateral well developed, dorsolateral larger than distolateral; 2 slender terminal segments, ultimate segment with tuft of pronounced setae on extensor distal margin. Antenna: Article 1 with strong ventromesial process ending in acute spine, not reaching end of article 2; article 2 with distomesial spine exceeding end of article 3, distolateral spine not reaching end of article 3, additional spine on mesial margin at midlength; articles 3 and 4 unarmed. Mxp 3: Ischium slightly longer than merus when measured at lateral midline, flexor margin with short distal spine, mesial ridge with 27 denticles. Merus with 2 subequal spines on flexor margin, extensor border unarmed. Carpus with small distal spine on flexor margin. Propodus and dactylus unarmed. P 1: 2.6 times carapace length; setose dorsally, scarcely setose or nearly glabrous ventrally; plumose and non-plumose long setae arising from numerous short striae. Merus 0.9 times as long as carapace, dorsal and mesial sides with row of spines, mesial spines larger, distal ones prominent. Carpus 1.5 times longer than wide, 0.6 times as long as merus; two rows of small spines on dorsal side, row of strong spines along mesial margin, small spines on ventral side. Palm 1.7 times as long as wide; dorsal surface unarmed, with some long setae arising from numerous short striae; mesial margin with row of spines, lateral margin with row of well-developed spines continued on to fixed finger. Fingers 0.9 times palm length, not gaping and tips crossing when closed; terminating in sharp curved spine; dorsal surface unarmed; movable finger unarmed on mesial margin. P 2–4: P 2 about 1.9 times carapace length, very setose on margins, with long plumose and non-plumose setae. P 2–4 meri posteriorly diminishing in size, extensor margin more or less rounded, with row of proximally diminishing spines, some well-developed spines on flexor margin, 1–3 small spines on lateral side, and 1 extra spine on terminal margin close to distal flexor marginal spine, lateral side with long setae arising from a few short striae: 1 minute spine on P 2–3, 3 on P 4; P 2 merus 0.8 times carapace length, 3.7 times longer than wide, and 1.5 times as long as propodus. Carpi with small spines (6 on P 2, 6 or 7 on P 3, 4 on P 4) on extensor margin. Propodi with small proximal spines along extensor margin: 2 and 4 on left and right P 2, respectively, 3 and 2 on left and right P 3, respectively, and 2 on P 4; flexor margin with 4 or 5 movable slender spines, terminal paired; P 2 propodus 4.4 times as long as wide and 2.7 times as long as dactylus. Dactyli sharply biunguiculate, terminal claw strongest; flexor margin with blunt protuberance, strongly developed on left P 3 (giving triunguiculate appearance), moderately developed on right P 3. P 5: Chelate, unarmed. Merus 0.7 times as long as carapace; extensor margin setose on distal three-quarters. Carpus 0.8 times as long as merus, with setae distally on extensor margin. Chela 0.9 times as long as carpus, with dense setae on extensor margin and distal part of flexor margin. Fingers 0.3 times as long as palm, with dense setae on extensor and flexor margins. Colour: Ground colour of carapace and pleon translucent whitish, with a pale yellow to faint orange tint. Carapace with numerous scattered minute white spots; small green and yellow spots present on each side at base of rostrum; pair of distinct yellow spots present submedially, each at base of largest postcervical spine; green spots located at base of spines. Pleon with numerous scattered minute white spots; yellow spots medially on pleonal tergites 1–3. Eyestalks with scattered reddish patches and yellowish lateral margins. Corneae with conspicuous reddish blotches. P 1 pale yellow to light orange, with reddish tinge, bearing scattered white spots; fingers translucent, with reddish distal tips. P 2–4 translucent whitish with scattered white spots; propodi faintly reddish distally. Etymology. The specific name aurea is the feminine form of the Latin adjective aureus, meaning golden, and it refers to the subtle golden-yellow tint of the live colouration of the new species.
Authors: Lee, Sang-Hui, Park, Jin-Ho
Language: English
Subfield: Ecology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225814668
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