Lauriea punctata Macpherson & Robainas-Barcia, 2013, n. sp.
Creators: name: Macpherson, Enrique
name: Robainas-Barcia, Aymee
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Galatheidae
Lauriea
Lauriea punctata

description: Lauriea punctata n. sp.
(Figs 4, 8 C, 9C, D)
Material examined. Holotype: Vanuatu. SANTO. Stn AT13, 15°27.8'S, 167°15.7'E, 146–153 m, 19 September 2006: 1 M 3.4 mm (MNHN-IU-2010-5292).
Paratypes: Philippines. MUSORSTOM 2. Stn CP47, 13°33'N, 122°10'E, 81–84 m, 26 November 1980: 1 M 2.8 mm (MNHN-IU-2010-5336), 1 F 3.3 mm (MNHN-IU-2010-5337). MUSORSTOM 3. Stn CP121, 12°08'N, 121°17'E, 73–84 m, 3 June 1985: 3 F 2.4–3.2 mm (MNHN-IU-2010-5334, MNHN-IU-2010-5335).—Bohol Island, Maribohoc Bay. PANGLAO. Stn P1, 9°36.1'N, 123°45.0'E, 90–200 m, 30 May 2004, 1 M, 2.4 mm (NTOU).—Bohol Island, Ubajan. PANGLAO. Stn B2, 9°33.0'N, 123°46.5'E, 5 m, 31 May 2004: 1 M 2.9 mm (NTOU).—Bohol Island, W of Baclayon. PANGLAO, Stn T6, 9°35.1'N, 123°51.2'E, 34–82 m, 2 June 2004: 1 M 2.8 mm, coarse muddy sand with large sponges (NTOU).—Panglao Island, Biking, PANGLAO. Stn B5, 9°35.2'N, 123°50.4'E, 4 m, 2 June 2004: 1 M 2.4 mm (NTOU).—Bohol Island, W of Baclayon. PANGLAO. Stn T7, 9°36.1'N, 123°53.3'E, 61–62 m, 3 June 2004: 2 M 2.1–2.7 mm, 1 ov. F 2.8 mm, 2 F 2.6–3.4 mm, in mud-sand (NTOU).—Catarman. PANGLAO. Stn B7, 9°35.9’N, 123°51.8’E, 4–30 m, 5 June 2004: 1 M 2.0 mm (NTOU).—Bohol Island, Maribohoc Bay. PANGLAO. Stn T13, 9°40.5'N, 123°49.5'E, 90–100 m, 17 June 2004: 1 ov. F 2.9 mm, in sponges (NTOU).—Panglao Island, Tangnan. PANGLAO. Stn L40, 9°37.3'N, 123°46.5'E, 100–120 m, 24 June 2004: 1 F 1.8 mm (NTOU).—Pamilacan Island. PANGLAO. Stn B24, 9°29.4’N, 123°56’E, 16 m, 25 June 2004: 1 M 2.9 mm (NTOU).—Balicasag, Black Forest. PANGLAO. Stn B23, 9°31.1'N, 123°41.3'E, 20–25 m, 25 June 2004: 2 M 2.5–2.8 mm, 2 ov. F 2.5–3.1 mm, rubble on sand (NTOU).—PANGLAO. Stn T4, 9°33.0'N, 123°48.5'E, 82 m, 1 July 2004: 1 M 2.8 mm, in sponges (NTOU).—Panglao Island between Momo and Napaling. PANGLAO. Stn B42, 9°37.0'N, 123°46.0'E, 30–33 m, 6 July 2004: 1 M 2.0 mm, 1 F 1.9 mm (NTOU).
Papua. Papua New Guinea, Alotau, 12 m: 2 ov. F 2.6 mm, 1 F 2.7 mm, in sponge (UF2388).
Vanuatu. SANTO. Stn EP10, 15°38.0'S, 167°13.6'E, 45–101 m, 15 September 2006: 3 M 2.0– 3.2 mm (MNHN-IU-2010-5310, MNHN-IU-2010-5309, MNHN-IU-2010-5304), 1 ov. F 2.6 mm (MNHN-IU-2010-5306), 4 F 2.0– 2.4 mm (MNHN-IU-2010-5308, MNHN-IU-2010-5307, MNHN-IU-2010-5310, MNHN-IU-2010- 5305).—Stn AT13, 15°27.8'S, 167°15.7'E, 146–153 m, 19 September 2006: 2 M 2.3–3.1 mm (MNHN-IU-2010- 5299), 1 F 2.1 mm (MNHN-IU-2010-5350).—Stn AT14, 15°24'S, 167°13.5'E, 102–120 m, 19 September 2006: 1 M 2.2 mm (MNHN-IU-2010-5331).— Vanuatu, SANTO, Stn DB63, 15°26.9’S, 167°15.8’E, 21 m, 25 September 2006: 1 F 1.5 mm (MNHN-IU-2010-5330).—Stn AT45, 15°37.5'S, 167°02.7'E, 188– 148 m, 29 September 2006: 1 M 2.1 mm (MNHN-IU-2010-5327).—Stn ZB9, 15°40.6'S, 167°05.1'E, 5–7 m, 0 2 October 2006: 1 ov. F 2.5 mm (MNHN-IU-2010-5340).—Stn FP47, 15°32.4'S, 167°12.7'E, 45–50 m, 2–3 October 2006: 1 F 2.1 mm (MNHN- IU-2010-5329).—Stn AT75, 15°37.0/37.3'S, 167°09.2'E, 52–66 m, 10 October 2006: 2 F 1.6–2.0 mm (MNHN-IU- 2010-5322, MNHN-IU-2010-5323).—Stn AT76, 15°38.7'S, 167°03.6'E, 105–135 m, 10 October 2006: 1 ov. F, 4.1 mm (MNHN-IU-2010-5320), 1 F 3.2 mm (MNHN-IU-2010-5321).—Stn AT85, 15°32.6'S, 167°15.7'E, 114–196 m, 12 October 2006: 1 M 2.6 mm (MNHN-IU-2010-5324), 2 ov. F 2.9–3.6 mm (MNHN-IU-2010-5326, MNHN- IU-2010-5325).—Stn FB90, 15°35'S, 167°07.7'E, 36–39 m, 16 October 2006: 1 F 2.0 mm (MNHN-IU-2010- 5328).
Australia. Queensland. Lizard Island, Washing Machine. 14°39.07’S, 145°16.47’E, 10–12 m, 9 February 2009: 1 M 2.2 mm (UF16687), 1 ov. F 3.1 mm (UF16683).— 14°39.62’S, 145°27.73’E, 18 February 2009: 1 M 1.1 mm (UF18236), 1 ov. F 2.3 mm, in dead Pocillopora (UF18237).
New Caledonia. Lagoon, 15–20 m, 20 September 1978: 1 M 2.8 mm (MNHN-IU-2010-5342).—Stn CP1, 22°17’S, 166°30.7’E, 22 m, 22 May 1984: 1 M 3.3 mm, 1 ov. F 3.0 mm (MNHN-IU-2010-5343).— St. Vincent Bay, Stn DW163, 22°12'S, 166°07.5'E, 15 m, September 1984: 1 ov. F 4.3 m, in sand (MNHN-IU-2010- 5341).—Noumea, Stn DW272, 22°12'S, 166°23'E, 20 m, October 1984: 1 M 3.3 mm (MNHN-IU-2010- 5346).—East Lagoon, Stn DW641, 21°53'S, 166°43'E, 50–52 m, August 1986: 1 ov. F 4.5 mm (MNHN-IU-2010- 5347).—Stn DW707, 21°25.3'S, 166°04.1'E, 34–38 m, August 1986: 1 ov. F 2.5 mm (MNHN-IU-2010- 5345).—Maitre Island, 25 m, 5 September 1978: 3 M 2.0– 3.2 mm (MNHN-IU-2010-5316, MNHN-IU-2010-5319, MNHN-IU-2010-5317), 1ov. F 3.9 mm (MNHN-IU-2010-5315), 1 F 2.8 mm (MNHN-IU-2010-5318).—Maitre Island, 22 m, 22 September 1992: 2 ov. F 3.0– 3.4 mm, sponge (MNHN-IU-2010-5301, MNHN-IU-2010- 5302).—Plotmatre, 22°19.35'S, 166°25.85'E, 20 m, 10 November 1995: 2, ov. F 2.9–3.1 mm (MNHN-IU-2010- 5348, MNHN-IU-2010-5349).—Lagoon, 22°19.35'S, 166°25.85'E, 21 m, 10 November 1995: 1 M 3.2 mm (MNHN-IU-2010-5300).—Stn 99, 10.5 m, 14 November 1995: 2 M 2.5–3.2 mm (MNHN-IU-2010-5311, MNHN- IU-2010-5314), 3 ov. F 2.3–3.3 mm (MNHN-IU-2010-5314, MNHN-IU-2010-5313, MNHN-IU-2010-5312).
New Caledonia, Chesterfield Islands. CORAIL 2, Stn DW26, 20°22'S, 161°05'E, 62 m, 22 July 1988: 1 M 3.2 mm (MNHN-IU-2010-5333).
New Caledonia, Lifou Island. LIFOU. Stn 1436, 20°55.5' S, 167°04.2' E, 10–20 m, 10 November 2000: 1 ov. F 2.2 mm (MNHN-IU-2010-5339).—Stn 1459, 20°47.0' S, 167°03.0' E, 55–80 m, 5 November 2000: 1 F 3.2 mm (MNHN-IU-2010-5338).
Etymology. From the Latin, puncta, puncture, dot, in reference to the presence of numerous red spots on the carapace, abdomen and pereiopods.
Description. Carapace: 1.0–1.2 times longer than wide, dorsal surface covered with long and short setae arising from numerous short and slightly prominent transverse ridges; small spines scattered on dorsal surface, 2 largest spines on epigastric region; transverse ridge anterior to posterior margin with minute spines. Cervical groove indistinct. Lateral margins convex, with 7 small but distinct spines on each side, last spine sometimes absent or mesial to lateral margin; first (anterolateral) small, lateral to lateral limit of orbit, remainder more or less distantly separated from another; 1 small spine mesial to anterolateral spine. Rostrum sharply triangular, with 4 moderately incised teeth, distal portion dorsally flatish, with a few long setae; length (measured from the tip to level of orbital margin) 0.4–0.5 times carapace length, and 0.8–0.9 times width (measured at level of orbital margin); rostral spine and distal tooth pair with slightly convex lateral margins.
Abdomen: somites with thick long coarse uniramous setae. Somites 2–4 each with 2 transverse setiferous ridges each preceded by groove.
Sternum: sternite 3 with anterior margin medially produced, 2.6–2.8 times wider than long; sternite 4 twice as wide as sternite 3, and 3.0–3.2 times wider than long.
Eyes: orbit not laterally produced, unarmed. Eyestalks short, 1.5 times longer than wide, reaching end of antennal peduncle, proximally somewhat wider, distally with long setae directly proximal to cornea; cornea length slightly less than half that of remaining 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 or blunt angle, nearly reaching end of article 2; article 2 with distomesial and distolateral spines reaching end of article 3, additional spine on mesial margin; article 3 unarmed.
Mxp3: ischium slightly longer than merus when measured in lateral midline, flexor margin with small distal spine, mesial ridge with 23–27 denticles. Merus with 2 subequal spines on flexor margin. Carpus with small distal spine on flexor margin.
P1: ca. 3.0 times carapace length; setose dorsally, scarcely setose or nearly glabrous ventrally; plumose and non-plumose long setae, partly coarse, arising from numerous short striae. Merus slightly shorter than carapace, dorsal and mesial sides with row of spines, mesial spines larger, distal ones prominent. Carpus 1.4–1.5 times longer than wide, equally wide as propodus, and 0.4–0.5 length of merus; some scattered small spines on dorsal side, row of strong spines along mesial margin, small spines on ventral side. Palm 1.5–1.9 times as long as wide; dorsal surface unarmed, with long plumose and non-plumose setae arising from numerous short striae, mesial margin with row of several spines, lateral margin with row of spines continued on to fixed finger. Fingers 0.8–0.9 propodus length, not gaping and tips crossing when closed; terminating in sharp curved spine; dorsal surface unarmed; movable finger unarmed on mesial margin.
P2–4: P2 about 1.3 times carapace length, very setose on margins, with long plumose and non-plumose setae. P2–4 meri posteriorly diminishing in size, extensor margin more or less rounded, with row of proximally diminishing spines, some well-developed spines on flexor margin, 0–2 small spines on lateral side, and 1 extra spine on terminal margin close to distal flexor marginal spine, lateral side with some long setae arising from numerous short striae; P2 merus 0.8 times carapace length, 3.6–3.9 times longer than wide, and twice longer than propodus. Carpi with small spines (4 or 5 on P2, 0–3 on P3–4) on extensor margin. Propodi with row of small spines (3 or 4 on P2, 0–2 on P3–4) along extensor proximal margin and 4- or 5 movable slender spines on flexor margin, including pair of terminal spines; P2 propodus ca. 3.2–3.4 times longer than wide, and more than 1.8 times dactylus length. Dactyli sharply biunguiculate, terminal claw strongest.
Colour. Ground colour of carapace and abdomen brownish or whitish; carapace with one red spot on each side of anterolateral and branchiocardiac area; abdominal somite 1 with pair of red spots, sometimes additional pair on other somites. P1–4 brownish or whitish; P1 with some red spots on dorsal side of merus and carpus; distal half of fingers with transverse red and white bands. P2–4 with 1 or 2 red and white spots on lateral side of each article. Setae whitish and brownish.
Remarks. Lauriea punctata is closely related to L. adusta from Madagascar, Philippines and Vanuatu in having the rostrum flattish on the distal portion, both the rostral spine and the distalmost lateral teeth with convex lateral margins, and the distomesial spine of the antennal article 2 reaching the end of the article 3.
However, these two species are distinguished by the following differences:
- The distomesial process of the antennal article 1 exceeds the end of the article 2 in L. adusta, whereas at most it reaches the end of the article 2 in L. punctata.
- In L. adusta, the ground colour of the carapace and the abdomen is brownish or whitish, without coloured spots, and the P1–4 have no coloured bands and red spots, whereas in L. punctata, several red spots are distinct on the carapace and the abdomen and colored bands and red spots are visible on P1–4.
The genetic divergences between L. punctata and L. adusta were 9.5% (COI) and 3.8% (16S rRNA). Distribution. Philippines, Papua, Australia (Queensland), Vanuatu and New Caledonia, at 4– 200 m.
description: Published as part of Macpherson, Enrique & Robainas-Barcia, Aymee, 2013, A new genus and some new species of the genus Lauriea Baba, 1971 (Crustacea, Decapoda, Galatheidae) from the Pacific and Indian Oceans, using molecular and morphological characters, pp. 136-160 in Zootaxa 3599 (2) on pages 146-150, DOI: 10.5281/zenodo.222465