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Sunday, January 20th, 2019
| Time | Event | ||||
| 2:30p | [Botany • 2018] Citharexylum peruvianum (Verbenaceae) • A New Species of Citharexylum from the Andean Foothills of Peru
Abstract A new species of Citharexylum from the foothills of inter-Andean dry valleys in Peru, Citharexylum peruvianum, is described and illustrated herein. It is distinguished from other closely related species with caulinar spines (C. andinum, C. flexuosum, C. herrerae, C. montevidense, and C. weberbaueri), by inflorescence morphology, leaf size, and pubescence. The newly defined taxon has 15–40 flowered racemes, rachis 7–12 cm long, and coriaceous leaves, with the leaf blade being 4–6(8) × 2–3 cm and densely hirsute on the abaxial surface. A brief discussion on closely related species is provided. Citharexylum peruvianum is known exclusively from northwestern Peru, from the departments of Cajamarca, Lambayeque, and La Libertad. The species grows in the Andean foothills at mid-elevations between 1400 and 3000 m a. s. l., in rocky soils and on steep slopes with thorny scrubland. It is occasionally found in moist areas. This species has a restricted distribution and limited numbers of individuals, which will likely result in threatened status following formal review.
Citharexylum peruvianum N.O’Leary & Frost, sp. nov. Etymology— The specific epithet refers to the species distribution in Peru, not having been found in other countries at the moment. Nataly O'Leary and Laura Frost. 2018. A New Species of Citharexylum (Verbenaceae) from the Andean Foothills of Peru. Systematic Botany. 43(4); 1046-1051. DOI: 10.1600/036364418X697733 | ||||
| 2:42p | [Paleontology • 2018] Phatthalungoceras srisuki • A New Genus and Species of Triassic Nautiloid Cephalopod (Cephalopoda: Orthoceratoidea, Orthoceratidae) from Eastern Peninsular Thailand
Abstract Phatthalungoceras srisuki gen. et sp. nov. (Orthoceratidae) has been collected from Khao Ok-Thalu, Chaiburi Formation, Triassic Strata in Phatthalung province, in eastern peninsular Thailand and is described as a new genus and species based on the characteristics of the internal mold of the phragmocone. The new genus is distinguished from other family members by its elliptical cross section of the conch as well as suborthochoanitic septal neck and free endosiphuncular deposit. Ornamentation is absent. Keywords: new genus, new species, Triassic, nautiloid, Thailand
Kittichai Tongtherm and Jaruwat Nabhitabhata. 2018. Phatthalungoceras srisuki, A New Genus and Species of Triassic Nautiloid Cephalopod (Cephalopoda: Orthoceratoidea, Orthoceratidae) from Eastern Peninsular Thailand. Phuket Marine Biological Center Research Bulletin. 75:13-18. | ||||
| 2:48p | [Crustacea • 2018] Cambarus loughmani • A New Species of Crayfish (Decapoda: Cambaridae) endemic to the Pre-glacial Teays River Valley in West Virginia, USA
ABSTRACT A new species of crayfish, Cambarus loughmani sp. nov., is described from the preglacial Teays River Valley of Cabell, Kanawha, Lincoln, Mason, and Putnam counties, West Virginia. The species was previously considered to be part of the Cambarus dubius complex. Loughman et al. restricted C. dubius to an orange colour morph found in central and northern portions of the Allegheny Mountains and Appalachian Plateau in central West Virginia, western Maryland, and south-central Pennsylvania. The new species described herein can be distinguished from all other members of Cambarus Erichson, 1846 by a double row of cristiform tubercles on the palm, an open areola with two rows of punctations, and a consistent blue colouration. KEYWORDS: Appalachian Plateau, Cambarus, crayfish, new species, West Virginia
Cambarus loughmani Foltz, Sadecky, Fetzner and Thoma sp. nov. Cambarus dubius Faxon 1884: 114 [in part]. Faxon 1885: 70, pl. 4: fig. 3; pl. 8: figs 7, 7ʹ [in part]; Dewees 1972: 1, figs 1b–l, 2c–h, 3, 4, 5b–h, 6–16 [in part]. Cambarus carolinus dubius.–Faxon 1914: 396, 425 [in part]. Cambarus (Jugicambarus) dubius.–Hobbs and Bouchard 1973: 62 [in part]; Hobbs 1974: 18, fig. 60 [in part]; Hobbs 1989: 22, fig. 78 [in part]; Jezerinac et al. 1995: 121, fig. 61 [in part]. Cambarus aff. dubius. – Loughman et al. 2015: 534 [in part]. Etymology: The authors of this paper name this crayfish in honour of Dr Zachary J. Loughman, assistant professor of biology, West Liberty University. In recent years, prior to the naming of this species, Dr Loughman has served as one of the primary astacological researchers, contributing greatly to our understanding of ecology, taxonomy, conservation and distribution of Appalachian crayfish species. It is fitting that this crayfish be named in his honour, as both he and this crayfish are reclusive, hard to track down, and when faced with adversity never back down and often advance with arms flailing. The authors of this paper are composed of a mix of age classes. For the younger authors, Dr Loughman has served as a teacher, advisor and mentor. For the older authors he has served as a colleague, collaborator and student. For all of us, he has been a friend and an inspiration. Common name:The suggested common name for this species is Blue Teays Mudbug as it inhabits the Teays River Valley.  David A. Foltz II, Nicole M. Sadecky, Greg A. Myers, James W. Fetzner Jr., Stuart A. Welsh, G. Whitney Stocker, Mael G. Glon and Roger F. Thoma. 2018. Cambarus loughmani, A New Species of Crayfish (Decapoda: Cambaridae) endemic to the Pre-glacial Teays River Valley in West Virginia, USA. Journal of Natural History. 52(45-46); DOI: 10.1080/00222933.2018.1557271  |
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