Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha, India 761002 2Department of Marine Sciences, Berhampur University, Bhanja Bihar, Berhampur, Ganjam, Odisha, India 760007.
Estuarine Biology Regional Centre, Zoological Survey of India, Gopalpur-on-Sea, Ganjam, Odisha, India 761002.
Zootaxa. 2022 Aug 9;5174(2):188-194. doi: 10.11646/zootaxa.5174.2.5.
A new species Rhynchoconger randalli sp. nov. is described herein on the basis of 2 specimens collected from Paradeep fishing harbor, Odisha, India along the Bay of Bengal from a depth of about 3640 meters. The pentagonal vomerine teeth pattern is unique among all the Rhynchoconger species described to date. The new species is characterized by predorsal vertebrae 78 and preanal vertebrae 2931. The new species closely resembles the recently described Rhynchoconger smithi, but differs in having a larger eye diameter (12.512.9% HL vs. 9.59.7% in R. smithi), smaller interorbital space (13.113.5% HL vs. 15.018.1 in R. smithi), lower dorsal-fin ray count before vent 4447 vs. 5458 in R. smithi, and unique pentagonal vomerine teeth pattern.
本文基于从印度孟加拉湾的 Paradeep 渔港在约 3640 米深处采集的 2 个标本，描述了一个新的 Rhynchoconger 物种 Rhynchoconger randalli sp. nov.。五角形的犁骨齿模式在迄今为止描述的所有 Rhynchoconger 物种中是独一无二的。该新物种的特征是背前脊椎 78 个和前肛脊椎 2931 个。该新物种与最近描述的 Rhynchoconger smithi 非常相似，但在以下方面有所不同：眼睛直径较大（12.512.9% HL 与 R. smithi 的 9.59.7%），眶间距离较小（13.113.5% HL 与 R. smithi 的 15.018.1%），在泄殖腔前的背鳍射线计数较低（4447 与 R. smithi 的 5458），以及独特的五角形犁骨齿模式。
