Folioquinpes indicus, Huys, Rony & Lee, Jimin, 2018

Huys, Rony & Lee, Jimin, 2018, Philippiphonteaspidosoma gen. et sp. n., a radically divergent member of the Laophontidae from shell gravel in the East Sea, South Korea, including a review of Folioquinpes Fiers & Rutledge, 1990 (Copepoda, Harpacticoida), ZooKeys 775, pp. 15-46 : 15

Folioquinpes indicus sp. n.

Laophonte chathamensis Sars, 1905 sensu Sewell (1924)

Original description.

Sewell (1924 as Laophonte chathamensis ): 830-832; Plate LVII, fig. 2 (♀ only).

Type material.

The original material collected by R.B. Seymour Sewell is no longer available for re-examination. In accordance with ICZN (1999) Arts 16.4 and 72.5.6 the female specimen illustrated by Sewell (1924) in his plate LVII (fig. 2) is here fixed as the holotype of F. indicus sp. n.

Type locality.

India, Odisha State, Chilika (Chilka) Lake; anchorage at Barkul due east; tow-nettings of brackish water plankton.

Body length.

400 μm (♀) [ Sewell 1924].

Remarks.

Females of F. indicus differ from those of F. chathamensis primarily in the morphology of the P5 exopod which is more oval, has three outer setae (instead of two) and a very short, blunt spine apically (Sewell may have missed the flagellate tip). Additional differences include the more slender P1 endopod (enp-1:enp-2 ratio 5.3 vs 4.6) and the shorter P4 enp-2 (enp-1:enp-2 ratio 1.1 vs 0.8).

The authenticity of other records from the Indian peninsula is unclear since none was accompanied by illustrations. Chappuis (1941) recorded Onychocamptus chathamensis from the River Sina and the River Bhima (near Pandharpur) in Maharashtra State, approximately 250 km inland from the Indian west coast. In a later report Chappuis (1954) added records from Mhaisgaon (River Sina) and Dabhol (Vashishti River), both in Maharashtra State, and from coastal lagoons in two districts of the Union Territory of Puducherry, i.e. Mayyazhi ( Mahé) and Karaikal, along the southwestern and southeastern coasts of the Indian peninsula, respectively. Folioquinpes chathamensis has recently been recorded from the middle and/or lower reaches of the River Godavari and River Krishna in Andhra Pradesh ( Jayaram 1995; Ranga Reddy 2001, 2014; Ranga Reddy and Schminke 2009a - b; Ranga Reddy and Totakura 2010; Totakura et al. 2016). These hyporheic freshwater records, all from the east coast of India, most likely refer to F. indicus . Ranga Reddy (2002) reported " F. chathamensis " from a bore well on the Nagarjuna University campus, near Guntur town (Andhra Pradesh). The species is also known from Port Canning near Kolkata, West Bengal ( Forró and Dussart 1985).