Glyphidrilus vangviengensis Panha & Chanabun, 2011

Chanabun, Ratmanee, Bantaowong, Ueangfa, Sutcharit, Chirasak, Tongkerd, Piyoros, James, Samuel W. & Panha, Somsak, 2012, A New Species Of Semi-Aquatic Freshwater Earthworm Of The Genus Glyphidrilus Horst, 1889 From The Mekong River (Oligochaeta: Almidae), Raffles Bulletin of Zoology 60 (2), pp. 265-277 : 274

Glyphidrilus vangviengensis Panha & Chanabun, 2011

Glyphidrilus vangviengensis Panha & Chanabun, 2011: 213 . Figs. 1–3 . Type locality: River bank of Song River at Vangvieng, Veintiane Province, Laos.

Material examined. — Holotype ( CUMZ 3221 ) and paratypes ( CUMZ 3222 ) in the CUMZ collections.

Remarks. — Glyphidrilus vangviengensis differs from G. mekongensis , new species by the wing locations in 24, 25–31, 32, with clitellum in 19, 20–35, 36, 37, the intestinal origin in 16, and genital markings median unpaired on aa in 12, 13–14, 15 and paired between b to c in 18, 19, 20, 21–22, 23, 24 and 33, 34 ( Table 2).

Figures

Fig. 1. Map of Ubon Ratchathani Province showing type locality of Glyphidrilus mekongensis, new species (arrow head) located on the shore of the Mekong River at Khong Chiam District.

Fig. 2. Photographs showing: A, casts; B, cocoon (arrow head); C, habitat, of Glyphidrilus mekongensis, new species in a bay structure with rock front barrier at the Mekong River.

Fig. 3. The colouration of newly collected specimens just after the first step preservation in 30% ethanol:A, Glyphidrilus mekongensis, new species (paratype CUMZ 3216); B, Glyphidrilus malayanus from Tok Bok Hotspring, Kelantan, Malaysia (CUMZ 3218); C, Glyphidrilus singaporensis topotype specimen (CUMZ 3217); D, cocoon characters of Glyphidrilus mekongensis, new species (paratype CUMZ 3216).