Caridina variabilis, Mazancourt & Marquet & Rogers & Keith, 2018

Mazancourt, Valentin De, Marquet, Gerard, Rogers, D. Christopher & Keith, Philippe, 2018, Description of a new species of Caridina (Crustacea: Decapoda: Atyidae) from two Micronesian islands (Guam and Babeldaob), Zootaxa 4377 (1), pp. 39-50 : 43-44

Caridina variabilis , n. sp.

( Fig. 4 )

Material examined. Holotype: PALAU. MNHN-IU- 2017-2082 ( DNA: CA1026) 1♂ cl 3.4 mm, Tabecheding River 27/02/2011, 07°27.169N, 134°31.748E.

Paratypes: PALAU. One male cl 2.4 mm (MNHN-IU- 2017-2083, DNA: CA1032 ) and three non-ovigerous females cl 4.1 mm (MNHN-IU- 2017-2084 DNA: CA1029 ) 4.8 mm (MNHN-IU- 2017-2085 DNA: CA1025 ) & cl. 4.9 mm (MNHN-IU- 2017-2086 DNA: CA1030 ), Tabecheding river 27/02/2011, 07°27.169N, 134°31.748E . 2♀ ovig cl 4.0 mm (MNHN-IU- 2017-2087 DNA: CA1149 ) & 4.4 mm (MNHN-IU- 2017-2088 DNA: CA1148 ), Ngerchokl River 27/02/2011, 07°36.527N, 134°36.958E . 1♀ ovig cl 3.9 mm (MNHN-IU- 2017-2089 DNA: CA1111 ), Kirelauch River 28/02/2011, 07°41.417N, 134°37.754E . 2♂ cl 3.2 mm (MNHN-IU- 2017-2090) & 3.3 mm (MNHN-IU- 2017-2091), West Coast stream Northern Tip 28/02/2011, 07°43.056N, 134°36.924E . 1♀ cl 3.8 mm (MNHN-IU- 2017-2092 DNA: CA1106 ) and 2♀ ovig cl 4.2 mm (MNHN-IU- 2017-2093 DNA: CA1104 ) & 3.8 mm (MNHN-IU- 2017-2094 DNA: CA1107 ), small stream East Coast 07°29.909N, 134°38.099E . 1♀ ovig cl 4.2 mm (MNHN-IU- 2017-2095 DNA: CA1020 ), Ngermeskang River 01/03/2011, altitude: 75m, 07°32.484N, 134°34.670E . 1♀ ovig cl 4.4 mm (MNHN-IU- 2017-2096 DNA: CA1203 ), Ngardmau Waterfall 02/03/2011, 07°35.482N, 134°35.573E . 1♀ cl 3.6 mm (MNHN-IU- 2017-2097 DNA: CA1204 ), Mesekelat River 03/03/2011, 07°26.305N, 134°34.321E.

PALAU Not C. b. uncata Holthuis : USNM 105430 : holotype, 1♀ ovig cl 3.5 mm Arakitaoch River ; USNM 105434: paratype, 1♀ cl 4.4 mm.

Not C. brachydactyla : USNM 172589: 1♂ cl 2.5 mm and 1♀ cl 3.0 mm; USNM 172590: 1♀ cl 5.5 mm.

GUAM. Assan River : DCR (D. Christopher Rogers collections) 9♂ cl 2.7 mm (MNHN-IU- 2017-2098 DNA: CA1535 ), 3.5 mm (MNHN-IU- 2017-2099 DNA: CA1536 ), 2.3 mm (MNHN-IU- 2017-2100 DNA: CA1537 ), 2.7 mm (MNHN-IU- 2017-2101 DNA: CA1539 ), 2.8 mm (MNHN-IU- 2017-2102 DNA: CA1540 ), 2.4 mm (MNHN- IU- 2017-2103 DNA: CA1541 ), 2.2 mm (MNHN-IU- 2017-2104 DNA: CA1542 ), 2.7 mm (MNHN-IU- 2017-2102 DNA: CA1543 ), 2.3 mm (MNHN-IU- 2017-2105 DNA: CA1544 ) and 1♀ ovig cl 4.5 mm (MNHN-IU- 2017-2106 DNA: CA1538 ) . BPBM 4227 1♀ ovig cl 4.4 mm; 13° 28' 18.24"N, 144° 42' 48.66"E; 03/02/2011; DCR: 14♂ cl 2.1–3.4 mm, 6♀ cl 2.8–3.3 mm, and 4♀ ovig cl 3.4–4.3 mm; 13° 28' 18.24"N, 144 ° 42' 48.66"E. 02/02/2011. Masso River : DCR: 9♂ cl 2.2–3.6 mm , 3♀ cl 2.7–3.2 mm, and 13♀ ovig cl 3.4–4.5 mm; 13° 27' 32.85"N, 144° 41' 54.26"E; 1 February 2011. Namo River : 2♂ cl 2.4–2.8 mm , 2♀ cl 2.6–3.0 mm, and 11♀ ovig cl 3.4–4.2 mm; 13° 23' 58.59"N, 144° 39' 58.81"E; 01/02/2011. DCR: 6♂ cl 2.4–3.1 mm; 13° 23' 57.16"N, 144° 40' 05.22"E; 02/02/ 2011. Ceti River : 1♀ cl 2.3 mm, and 7♀ ovig cl 3.1–4.1 mm; 13° 19' 34.66"N, 144° 40' 09.12"E; 31/01/2011 . Toguan River : 29♂ cl 2.0– 3.4 mm , 16♀ cl 2.4–3.5 mm, and 34♀ ovig cl 3.5–4.3 mm; 13° 17' 17.94"N, 144° 39' 55.77"E; 31/01/2011. DCR: 8♂ cl 2.2–3.4 mm, 1♀ cl 2.6 mm, and 9♀ ovig cl 3.6–4.0 mm; 13° 17' 15.79"N, 144° 40' 02.51"E; 02/02/2011. Ylig River : 1♂ cl 2.4 mm, and 3♀ ovig cl 3.3–4.1 mm; 13° 23' 46.21"N, 144° 45' 54.85"E; 30/01/2011.

MARIANA ISLANDS ( Island not specified): Not C. brachydactyla : MNHN-IU-2015-1824: 2♀ ovig cl 4.2–5.2 mm.

Figures

FIGURE4. a. First pereiopod; b.Second pereiopod 2; c. Third pereiopod; d. Fifth pereiopod; e. Dactylus of thirdpereiopod; f. Dactylus of fifth pereiopod;g. Male first pleopod; h. Male second pleopod; i. Eggs; j. Uropodial diaeresis; k. Pre-anal carina; l. Telson; m., n.Cephalothorax; o. General appearance; p.Right mandible; q. Left mandible; r.First maxilla;s. Secondmaxilla; t. Third maxilliped; u. Second maxilliped; v.First maxilliped.