scholarly journals Theosbaena loko sp. n. a new stygobiotic microshrimp (Thermosbaenacea: Halosbaenidae) from southern Thailand

2020 ◽  
Vol 8 ◽  
Author(s):  
Sopark Jantarit ◽  
Rueangrit Promdam ◽  
Koraon Wongkamhaeng

Thermosbaenaceans are subterranean crustaceans, widespread and occur in freshwater, oligohaline or anchialine caves or thermal springs. Currently, four families, seven genera,and 45 species are recognised worldwide. During our studies of the isolated karst, Tham Loko (Loko Cave) in Khao Chiason District, Phatthalung Province, we found an undescribed thermosbanacean species in the genus Theosbaena. Theosbaena is the only genus reported from freshwater in the Oriental Region. Previously, there were only two known species, Theosbaena cambodjiana Cals & Boutin, 1985 from Kampot Province, southern Cambodia and Khon Kaen, Thailand and T. kiatwongchai Rogers & Sanoamuang, 2016 discovered in a cave of Takhli District, Nakhon Sawan, central Thailand. Our new species is the third species recorded in the Oriental Region. Theosbaena loko sp. n. differs from its congeners by having a telson 1.8x longer than its breadth, maxilla 1 palp distal segment 4x longer than the proximal palpomere and the maxillopodal exopod twice as long as its basal width. This microshrimp is the third described species of the genus. A key to the species is given and suggestions for the conservation status of the new species are discussed.

Zootaxa ◽  
2021 ◽  
Vol 4969 (2) ◽  
pp. 318-330
Author(s):  
WORAWITOO MEESOOK ◽  
MONTRI SUMONTHA ◽  
NATTASUDA DONBUNDIT ◽  
OLIVIER S. G. PAUWELS

We describe Gekko pradapdao sp. nov. from Tham Khao Chan (Khao Chan Cave), Tha Luang District, Lopburi Province, in central Thailand. The new species, a member of the subgenus Gekko, differs from all currently recognized Gekko species by the following combination of morphological characters and pattern: maximal known snout-vent length of 127.1 mm, lack of contact between nostrils and rostral, 24–28 interorbital scales between supraciliaries, 89–91 scale rows around midbody, 16–18 dorsal tubercle rows at midbody, 30–34 ventral scale rows at midbody, 11–13 precloacal pores in males, a single postcloacal tubercle on each side of the base of the tail, 13–16 subdigital lamellae on 1st toe and 17–19 on 4th toe, no Y-shaped mark on head, non-banded dorsal pattern on a dark chocolate brown to black background, and a dark brown iris. Urgent actions should be taken to evaluate the conservation status of the new species. 


Phytotaxa ◽  
2016 ◽  
Vol 247 (2) ◽  
pp. 133 ◽  
Author(s):  
JULIÁN AGUIRRE-SANTORO ◽  
KERON C. ST. E. CAMPBELL ◽  
GEORGE R. PROCTOR

Recent botanical expeditions to the Dolphin Head Mountains in western Jamaica allowed the collection of different specimens of a new species, Hohenbergia rohan-estyi, an enigmatic plant that resembles the also Jamaican-endemic H. negrilensis. In this study, we describe H. rohan-estyi and include notes on its geographical distribution, habitat, conservation status and taxonomy. The length of the stipes and number of flowers per spike permit the differentiation of H. rohan-estyi from H. negrilensis. In addition, the geographic distributions of these two species do not overlap, as H. rohan-estyi inhabits mountainous forests of the Dolphin Head region while H. negrilensis occurs in coastal areas of western Jamaica. Finally, H. rohan-estyi is the third species of Hohenbergia reported as endemic to the Dolphin Head Mountains, indicating the importance of this area in the evolution and conservation of the genus in Jamaica and the Caribbean.


Zootaxa ◽  
2004 ◽  
Vol 772 (1) ◽  
pp. 1 ◽  
Author(s):  
OLIVIER S.G. PAUWELS ◽  
AARON M. BAUER ◽  
MONTRI SUMONTHA ◽  
LAWAN CHANHOME

A new cave-dwelling species of Cyrtodactylus is described from Khao Sonk in Surat Thani Province, southern peninsular Thailand. The new species is characterized by its slender body (snoutvent length to at least 80 mm) with a banded pattern, elongate tail and digits, low number (14) of rows of dorsal tubercles, absence of precloacal groove, and enlarged series of precloacal and femoral scales, all lacking pores. It is the third species of cave-dwelling Cyrtodactylus recorded from Thailand.


ZooKeys ◽  
2021 ◽  
Vol 1037 ◽  
pp. 15-22
Author(s):  
Xiaoyan Li ◽  
Yanpeng Cai ◽  
Haifeng Chen

A new species of Pachypaederus Fagel, 1958, P. kongshuhensis Li, sp. nov., is described from Yunnan Province, China. This species represents the third member of the genus from the Oriental region. Color plates of the habitus, labrum, mandibles, sternites VII–IX of the male and female, as well as the aedeagal structures are provided. A key to Oriental Pachypaederus species is provided.


Phytotaxa ◽  
2016 ◽  
Vol 288 (2) ◽  
pp. 175
Author(s):  
CHARLIE D. HEATUBUN

A new species of betel nut palm, Areca jokowi, is described and illustrated here. This is the third species of Areca to have been described recently from New Guinea that is closely related to the widespread, economically important species A. catechu, the cultivated betel nut palm. A discussion of its morphological characters, distribution, ecology, habitat, uses and conservation status is provided, as well as a new identification key for western New Guinean Areca.


2019 ◽  
Vol 95 (2) ◽  
pp. 535-542 ◽  
Author(s):  
Rofiza Yolanda ◽  
Shozo Sawamoto ◽  
Vachira Lheknim

A new mysid, Heteromysoides songkhlaensis, is reported from shallow water in the Songkhla Lagoon, southern Thailand. The new species is closely similar to H. nana in having a triangular rostrum and the eyestalk without a process at the anteromesial corner. However, the new species can be readily distinguished from H. nana by three setae on the inner margin and five setae on distal margin of the second segment of the mandibular palp; the carpopropodus of the fifth and sixth thoracic endopod of the new species is composed of four articles, and the telson of the new species is distally rounded, shorter than the sixth abdominal somite, and 1.3 times longer than its basal width; the spines on the telson form elongated spines from the distal to posterior margin. The new species also resembles H. dennisi, H. simplex, and H. stenoura; however, it differs by (1) the presence of a rounded distal margin of telson, and (2) absence of a sharp process on the distolateral corner of the eyestalk.


Phytotaxa ◽  
2020 ◽  
Vol 435 (1) ◽  
pp. 33-40
Author(s):  
MILTON RINCÓN-GONZÁLEZ ◽  
MARÍA FERNANDA ESCALANTE

A new species of Epidendrum from central Andes of Colombia is described and illustrated. Epidendrum machinense belongs to the Mancum group, Stenoglossum subgroup; being only the third species known to belong to that subgroup. The new species is characterized by having larger plants with respect to its close relatives, bearing 50–80 flowers per inflorescence, the flowers are resupinate due to drooping of the rachis, rather than the twisting of the pedicel; the petals are 3–veined, yellow tinged purple-brown, with completely yellow apices, the lip is white with numerous wine-red spots, 3–lobed, with broadly hamate lateral lobes, and a mid-lobe with a rombic or bifid apex. Information on the species distribution, habitat and phenology, conservation status, and characters that distinguish it from the nearest species are provided, as well as an annotation on resupination in the Stenoglossum subgroup.


Phytotaxa ◽  
2020 ◽  
Vol 454 (2) ◽  
pp. 137-144
Author(s):  
RICARDO PACIFICO ◽  
FRANK ALMEDA

A new species of Microlicia is described from the municipality of Morro do Chapéu, Bahia, Brazil. Microlicia morrensis is apparently related to M. petasensis and differs by its leaves that have a denser indumentum of eglandular trichomes, hypanthia densely covered with eglandular trichomes, calyx lobes triangular to widely triangular and lacking a stout eglandular trichome at the apex, petals rounded at the apex, and antepetalous stamens with appendages 4/5 to totally divided into two lobes. Photos of herbarium material and dried floral parts, a distribution map, notes on its conservation status, and an identification key to the species of Microlicieae from Morro do Chapéu are provided.


Author(s):  
Chaichat Boonyanusith ◽  
La-orsri Sanoamuang ◽  
Anton Brancelj

Two obligate cave-dwelling species of cyclopoid copepods (Copepoda, Cyclopoida) were discovered inside caves in central Thailand. Siamcyclops cavernicolus gen. et sp. nov. was recognised as a member of a new genus. It resembles Bryocyclops jankowskajae Monchenko, 1972 from Uzbekistan (part of the former USSR). It differs from it by (1) lack of pointed triangular prominences on the intercoxal sclerite of the fourth swimming leg, (2) mandibular palp with three setae, (3) spine and setal formulae of swimming legs 3.3.3.2 and 5.5.5.5, respectively, and (4) specific shape of spermatophore. Metacyclops thailandicus sp. nov. resembles M. cushae Reid, 1991 from Louisiana (USA). It differs from it by (1) distal segment of the endopod of the fourth swimming leg with one apical spine, (2) the fifth swimming legs with one broad segment, (3) the spine formula of the distal segment of the exopod of the swimming legs 3.4.3.3, and (4) well developed anal operculum reaching articulation with caudal rami. Detailed descriptions of the habitats of the new species and up-to-date keys to the genera and subgenera of the Bryocyclops and Microcyclops groups are provided, along with an updated list of obligate groundwater species of Copepoda in Southeast Asia.


Zootaxa ◽  
2011 ◽  
Vol 3066 (1) ◽  
pp. 1
Author(s):  
PAKAWIN DANKITTIPAKUL ◽  
MARIA TAVANO ◽  
TIPPAWAN SINGTRIPOP

A neotype is designated for Sphingius thecatus Thorell, 1890, the type species of the genus from type locality of Penang Island, Malaysia; its conspecific female is described for the first time. Detailed morphological descriptions and illustrations for both sexes are provided. Six new species are described from Southeast Asia: S. rama sp. nov. and S. prolixus sp. nov. from eastern Thailand; S. elongatus sp. nov. from southern Thailand; S. superbus sp. nov. and S. bifurcatus sp. nov. from Thailand and Malaysia; S. spinosus sp. nov. from Thailand, Malaysia and Indonesia. Sphingius pingtung Tso et al., 2005 known from Taiwan, China is considered a junior synonym of S. scrobiculatus Thorell, 1897. Sphingius sinensis (Schenkel, 1963), originally placed in Scotophaeoides (Gnaphosidae), is regarded as a junior synonym of S. gracilis (Thorell, 1895). Additional specimens of S. gothicus Deeleman-Reinhold, 2001 were collected from northeastern and central Thailand, expanding species distribution range towards the south. Specimens of S. punctatus Deeleman-Reinhold, 2001 were collected from Thailand and Indonesia. Sphingius vivax (Thorell, 1897) and S. scrobiculatus Thorell, 1897 are recorded from Thailand for the first time.


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