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Monday, December 20th, 2021
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| 3:26a | [Ichthyology • 2021] Obliquogobius eptactis • A New Species of Obliquogobius (Gobiiformes: Gobiidae) from the Andaman Sea (northeastern Indian Ocean)
Abstract Obliquogobius eptactis, new species (Teleostei: Gobiidae) is described on the basis of four specimens (40.7–50.1 mm in standard length) collected by the R/V Dr. Fridtjof Nansen from the Andaman Sea, off Myanmar, in depths of 181–184 m. The new species is characterised by the following combination of characters: 2nd dorsalfin rays I, 9 or 10; head somewhat large, length 32.9–34.4% of SL; lateral surface of nape scaled; postorbital pore G present (in anterior oculoscapular canal); gill opening relatively narrow, anteroventral point extending slightly forward to vertical level of preopercle margin; caudal fin dorsoventrally asymmetrical, rays in upper half much longer than those in lower half, giving obliquely pointed appearance; seven bright yellow bars (pale whitish in preserved specimens) on body, two under 1st dorsal-fin base, remainder under 2nd dorsal fin (from origin) and on caudal peduncle; dorsal fins pale brown with bright yellow barred pattern; 1st dorsal fin without broad black margin; pectoral fin bright yellow; three bright yellow vertical bars on upper part of caudal fin; distinct black spot on centre of caudal-fin base absent. Although the new species is similar to Obliquogobius yamadai Shibukawa & Aonuma, 2007, the former can be distinguished from the latter by having seven bright yellow bars on the body [vs. five bars (rarely six, including indistinct partial bar located above anus) in O. yamadai], a bright yellow barred pattern on the dorsal fins (vs. 1st and 2nd dorsal fins lacking barred patterns: 1st dorsal fin with distinct broad black margin, 2nd dorsal fin generally faint yellow), bright yellow pectoral fins (vs. translucent white or faint yellow), no distinct small black spot centrally on the caudal-fin base [vs. a small black spot (variable in size) with following indistinct yellow partial bar present], three bright yellow irregular vertical bars restricted to upper part of caudal fin (vs. three longitudinal yellow stripes on entire fin; stripes faded out soon after capture), and larger head, length 32.9–33.3 (vs. 28.3–32.2) and 34.4 (vs. 29.1–33.5) % of SL in males and females, respectively. Key words. Obliquogobius eptactis, Obliquogobius yamadai, deepwater goby, R/V Dr. Fridtjof Nansen, trawl surveys, Myanmar, Indian Ocean
Obliquogobius eptactis, new species [New English name: Seven-striped deepwater goby] Diagnosis. A species of Obliquogobius (Fig. 1) distinguished from other members of the genus by the following combination of characters: 2nd dorsal-fin rays I, 9 or 10; head somewhat large, length 32.9–34.4% of SL; lateral surface of nape scaled; postorbital pore G present (in anterior oculoscapular canal); gill opening relatively narrow, anteroventral point extending slightly forward to vertical level of preopercle margin; caudal fin asymmetrical dorsoventrally, rays in upper half much longer than those in lower half, giving obliquely pointed appearance; seven bright yellow (pale whitish in preserved specimens) bars on body, two located under 1st dorsal-fin base, remainder under 2nd dorsal-fin (from origin) and on caudal peduncle; dorsal fins pale brown with bright yellow barred pattern; 1st dorsal fin without broad black margin; pectoral fin bright yellow; three bright yellow vertical bars on upper part of caudal fin; distinct black spot on centre of caudal-fin base absent. Distribution. Currently known only from four specimens trawled between 181–184 m off the Myeik Archipelago, Andaman Sea. Etymology. The specific name “eptactis”, a combination of the New Greek “epta” and “aktis”, means “seven light rays”, in reference to the seven characteristic yellow bars on the body. Kyoji Fujiwara, Peter N. Psomadakis, Thet Yu Yu Swe and Hiroyuki Motomura. 2021. Description of A New Species of Obliquogobius (Teleostei: Gobiidae) from the Andaman Sea (northeastern Indian Ocean). RAFFLES BULLETIN OF ZOOLOGY. 69; 541–547. DOI: 10.26107/RBZ-2021-0070 | ||||||||
| 4:09a | [Botany • 2021] Carpotroche caceresiae (Achariaceae) • A New Species of Carpotroche from Honduras and Nicaragua
Abstract Carpotroche caceresiae, a newly delimited species from the Caribbean drainage of Honduras and Nicaragua, is described and illustrated and its extinction threat assessed as Near Threatened (NT) according to IUCN criteria. Carpotroche caceresiae has previously been confused with C. platyptera, a species characterized by a densely pubescent lower leaf surface and red fruits lacking crests between the wings; in contrast, C. caceresiae has sparsely pubescent lower leaf surface and green fruits with crests between the wings. Carpotroche crassiramea and C. glaucescens, typified with Costa Rican material, and hitherto included in the synonymy of C. platyptera, are treated here as distinct morphological identities; a list of the specimens examined and referred to these names are provided. Keywords: Carpotroche platyptera, Flacourtiaceae, Herbaria, Malphigiales, Mesoamerica, Taxonomy, Ecuador
 Carpotroche caceresiae D. Santam., sp. nov. This new species is morphologically similar to Carpotroche longifolia (Poepp.) Benth. with respect to its whitish to greenish fruits that are longitudinally winged and possessing numerous crests between the wings, and the leaves, whose abaxial surface is short-pubescent. Carpotroche caceresiae can be distinguished from C. longifolia by the wings of the fruit having an entire or weakly sinuate margin (vs. deeply lacerate).
Eponymy: This species is named in memory and recognition of the bravery of Berta Isabel CáceresFlores (1971–2016), one of 123 environmental activists assassinated in retaliation for their opposition to environmental destruction and loss of indigenous land in Honduras, between 2009 and 2016 (Global Witness, 2017). Berta Cáceres (Fig. 7), in particular, was murdered because of her opposition to the Agua Zarcas hydroelectric project. She won the Goldman Environmental Prize in 2015. Daniel Santamaría-Aguilar, Indiana M. Coronado, Ronald L. Liesner and Alexandre K. Monro. 2021. A New Species of Carpotroche (Achariaceae) from Honduras and Nicaragua. Harvard Papers in Botany. 26(2); 455–469. DOI: 10.3100/hpib.v26iss2.2021.n12  |
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