Cymo melanodactylus Dana 1852
Creators: name: Brösing, Andreas
name: Al-Aidaroos, Ali M.
name: Türkay, Michael
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Xanthidae
Cymo
Cymo melanodactylus

description: Cymo melanodactylus Dana, 1852
(Figs. 8 A–H)
Cancer (Cymo) meladactylus De Haan, 1833: 22 (nomen nudum).
Cymo melanonodactylus Dana, 1852: 225; 1855: pl. 13 fig. 1.
Cymo melanodactylus Pesta, 1911: 46.— Neumann & Spiridonov, 1999: 26.— Apel, 2001: 83. Cymo andreossyi var. melanodactyla s. nuda Klunzinger, 1913: 256.
Type locality: Java, Indonesia
Material examined. Red Sea: 1 ♀, Jordan, Aqaba, ferry port, 29°27.71’N 34°58.51’E, 5 m, living Acropora, 12.07.1995, coll. V. Neumann (SMF 41742); 1 ♂, 1 ♀ 05.07.1995 (SMF 41743); 1 ♂, 1 ♀, 0 5.07.1995 (KAUMM 20).— 1 ♂, 1 ♀, Sudan, Sanganeb Atoll abt. 28 km NE of Port Sudan, 19°44.57’N 37°26.87’E, outer fringe, living Acropora, 22.09.1992, coll. F. Krupp & V. Neumann (SMF 41741); 1 ♂, 20 m, 0 3.04.1991 (SMF 41762).
Comparative material from outside the Red Sea: 1 ♀, Saudi Arabian Gulf coast, Karan Isl., off S – coast, 10 – 13 m, 22.05.1995, coll. M. Apel (SMF 41759).—2 ♀, Abu Ali, 27°19'N 49°38'E, living Acropora, 3 m, 13.04.1993, coll. M. Apel (SMF 41760).— 2 ♂, 1 ♀, UAE, Abu Dhabi, Qarneyn I., NW Seite, 4–7 m, Acropora, coll. M. Apel (SMF 41746).— 1 ♂, 1 ♀, UAE, Abu Dhabi, Qarneyn I., 24°56'N 52°52'E, rocky bottom with living corals, 9 – 10 m, 17.07.1995, coll. M. Apel (SMF 41758).— 7 ♂, 3 ♀, UAE, Sharjah, about 500 – 800 m N of Lulayyah Port, 25°24'N 56°22'E, Acropora and other corals (Porites [Poritidae], Platygyra [Merulinidae]), 3 – 5 m, 2.7.1995, coll. M. Apel (SMF 41745).— 1 ♂, UAE, Fujairah, Sandy Beach Hotel, Al Aqqa, between mainland and small island, 25°30'N 56°22'E, sandy bottom, under stones and corals, 3 – 4 m, 0 4.07.1995, coll. M. Apel (SMF 41763).— 1 ♂, 1 ♀, Yemen, Socotra, E of Hadibo, Hawlaf Bay, 12°40.519'N 54°4.17'E, dead colonies of Acropora valida, 9 – 10 m, 21.03.1999, coll. M. Apel (SMF 41748).— 1 ♂, 2 ♀, Yemen, Socotra, N coast, between Hawlaf und Hadibo, 12°40.055'N 54°2.769'E, 28.2.1999, coll. M. Apel (SMF 41749).— 1 ♂, Yemen, Socotra, Acropora, 15.04.1999, coll. M. Apel (SMF 41750).—1 ♀, Yemen, Socotra, Abd al-Kuri, N coast, 0 6.04.2000, coll. R. Klaus (SMF 41751).— 2 ♂, 5 ♀, Indonesia, Pulau Edam (= Pulau Damar Besar), 5°57.5’S 106°50.83’E, Jan.-Apr. 1885, coll. J. G. F. Brock (ZMG 1218).
Diagnosis. Same as C. andreossyi except the carapace is yellow/grey; frontal, orbital, anterolateral margins of carapace with minute granules; carapace dorsally flattened, nearly glabrous (Fig. 8). Frontal margin with 3 slightly pointed spines, mesial spines bifurcated, frontal lobes are separated by rounded incision (Fig. 14 C). Inner orbital margin smooth.
Chelipeds: merus, carpus, propodus with minute irregular granules, tips of both fingers black, spoon shaped without molariform teeth.
G1 and G2 same as in C. andreossyi (see Fig. 9 A–F).
Gastric teeth same as in C. andreossyi (see Fig. 10 A–D)
Remarks. The species was until now only known from an unspecified locality in the Red Sea (Pesta, 1911) and from an unrecorded locality in the Dahlak Archipelago (Neumann & Spiridonov, 1999). It is now recorded from the Gulf of Aqaba and the Sudanese coast.
Geographical distribution. Same as C. andreossyi.
description: Published as part of Brösing, Andreas, Al-Aidaroos, Ali M. & Türkay, Michael, 2014, The Red Sea species of Cymo de Haan, 1833 (Decapoda, Brachyura, Xanthidae), associates of scleractinian corals, pp. 195-214 in Zootaxa 3779 (2) on pages 202-206, DOI: 10.11646/zootaxa.3779.2.5, http://zenodo.org/record/251073