Two new species of Salmoneus Holthuis, 1955 with a deep dorsal depression on the carapace (Crustacea, Decapoda, Alpheidae)

Zootaxa ◽  
2011 ◽  
Vol 3041 (1) ◽  
pp. 39 ◽  
Author(s):  
ARTHUR ANKER

Two closely related species of the alpheid shrimp genus Salmoneus Holthuis, 1955 are described as new, viz. S. excavatus sp. nov. from the tropical eastern Pacific (Panama, Colombia), and S. depressus sp. nov. from the western Atlantic (Panama, Venezuela, Barbados). The two species share the presence of a dent-like, deep, longitudinal depression on the dorsal surface of the carapace, a feature unique within Salmoneus, the Alpheidae, and possibly the infra-order Caridea, as well as several other characters, thus forming a transisthmian sister species pair.

Zootaxa ◽  
2015 ◽  
Vol 3957 (5) ◽  
pp. 520 ◽  
Author(s):  
ARTHUR ANKER ◽  
JUAN FELIPE LAZARUS

The present study deals two new alpheid shrimp species from the transisthmian Salmoneus ortmanni (Rankin, 1898) complex. Salmoneus alvarezi sp. nov. is described based on materials collected in Bahía Málaga, Colombia, and Punta Morales, Costa Rica, and is closely related to the western Atlantic S. ortmanni and S. wehrtmanni Anker, 2011. Salmoneus malagensis sp. nov. is described based on specimens from Bahía Málaga, Colombia, and beyond any doubts represents the eastern Pacific sister species of the western Atlantic S. carvachoi Anker, 2007. The two new species can be easily distinguished from each other by a number of morphological characters and colouration, and in addition appear to be ecologically separated. All previous records of S. ortmanni from the eastern Pacific are reassigned, some tentatively, to S. alvarezi sp. nov. based on description, illustrations or ecological data.


2017 ◽  
Vol 22 (6) ◽  
pp. 858
Author(s):  
WATARU HAGINO ◽  
BADAMDORJ BAYARTOGTOKH ◽  
SATOSHI SHIMANO ◽  
SHIMPEI F. HIRUTA

Although almost 50 species of Galumnidae (Oribatida) have been recorded in Japan, more species remain undiscovered. In the present work, we propose two new species from southern Japan, Trichogalumna boninensis sp. nov. and T. ohkuboi sp. nov., and provide an additional description of T. imperfecta Ohkubo, 1984. Trichogalumna boninensis sp. nov. can be distinguished from other closely related species by the smaller body size, and the large granular ornamentation along the hinges of the pteromorphs. Trichogalumna ohkuboi sp. nov. can be distinguished from other closely related species by the absence of granular ornamentation on the proximal margin of the dorsal surface of the pteromorph, the striated genital plates, the absence of granular ornamentation on the humeral region of the notogaster, the short lamellar and interlamellar setae, the distantly located porose areas of A1 and A2, and the different number of epimeral setae. Furthermore, we present data on habitat ecology and biogeography of Japanese species of Trichogalumna, and a key is provided for identification of all species in the world.


1999 ◽  
Vol 30 (4) ◽  
pp. 459-479
Author(s):  
C.A.W. Jeekel

AbstractThe Aschistodesmini from the Solomon Island are reviewed. Besides clarifying notes on the status of the type and closely related species of Aschistodesmus, descriptive notes and illustrations of the gonopods of the Solomon species of this genus, particularly of those published by Chamberlin, 1920, under the generic name of Solomonosoma, are given. Two new species, A. spatulifer and A. tridentifer are described, and a key to the species is provided. From Rennell Island Dorcadogonus modestus gen. n., sp. n. is described.


Zootaxa ◽  
2021 ◽  
Vol 5068 (1) ◽  
pp. 115-124
Author(s):  
ABDUR REHMAN ◽  
MENG-YUAN ZHAO ◽  
YU-ZHOU DU

Two new species of Nemouridae stoneflies, Amphinemura oblonga Rehman, Du & Zhao sp. nov. and Mesonemoura diqinga Rehman, Du & Zhao sp. nov., are described from China (Yunnan Province, Diqing Tibetan Autonomous Prefecture, Shangri-la city, Gezan township, Langdu Village). Diagnosis, description of terminalia, illustration of terminalia appendages and terminalia similarities with closely related species are provided and discussed.  


ZooKeys ◽  
2020 ◽  
Vol 935 ◽  
pp. 37-46 ◽  
Author(s):  
Zhe-Yu Chen ◽  
Min Wu

Two new species, Sinoarinia feii Chen, gen. et sp. nov. and Pincerna vallis Chen & Wu, sp. nov., are described from western Hubei, China. The new genus Sinoarinia Chen & Wu, gen. nov. is established based on the strongly constricted penultimate whorl and the ascending last whorl. The Vietnamese species Pincerna costulosa (Bavay & Dautzenberg) is newly reported from Yunnan, China. For comparison, photographs of the shells of closely related species are provided. A key to the known species of Sinoariniagen. nov. is included.


Zootaxa ◽  
2007 ◽  
Vol 1562 (1) ◽  
pp. 43-53
Author(s):  
MOHSEN MOFIDI-NEYESTANAK ◽  
DONALD L.J. QUICKE

Eupholidoptera karatolosi Mofidi-Neyestanak & Quicke from Greece and E. mirzayani Mofidi-Neyestanak & Quicke from Iran, two new species of bushcrickets (Orthoptera, Tettigoniidae: Platycleidini), are described and distinguished from closely related species based on morphology. Species relationships within Eupholidoptera Maran are discussed and some species are given new assignments. A simplified illustrated identification key to the species of Eupholidoptera is provided to accommodate the new species. They are being described since they have been used to generate DNA sequence data that will be published elsewhere as part of a phylogenetic study of the tribe Platycleidini.


1982 ◽  
Vol 60 (2) ◽  
pp. 158-164 ◽  
Author(s):  
Eldon S. Eveleigh

Two new species of dorylaim nematodes, Paractinolaimus spanithelus n. sp. and Paractinolaimus longidrilus n. sp., from aquatic habitats are described and illustrated. The main differential characteristics of P. spanithelus are the small number of widely spaced supplements (12), length of sperms (9–10 μm), bluntly rounded convex–conoid shape of the male tail, and the number of pairs of caudal papillae in both sexes. Paractinolaimus longidrilus is distinguishable from closely related species by the spicule length (83 μm), the heavily cuticularized lateral guiding pieces that are broadly rounded distally, the number of pairs of caudal papillae (11) in the male, and the number of submedian ventral papillae (13) in the male.


Zootaxa ◽  
2018 ◽  
Vol 4399 (3) ◽  
pp. 315 ◽  
Author(s):  
QING-HUA CHEN ◽  
WEN-JIAN CHEN ◽  
ZHAO-LIANG GUO

The present study, based on a faunistic and ecological survey of caridean shrimps from Dong’ao Island, Guangdong Province, expands the knowledge of morphology, colouration, and distribution of three species, two of which belong to genus Caridina and one belong to genus Marcrobrachium. Caridina zhujiangensis, new species is distinguished from the closely related species C. typus H. Miline Edwars,1837 by shorter rostrum and with only one ventral margin teeth, the shape of the endopod of the first male pleopod and the appendix interna arising from distal 1/3 of endopod. Macrobrachium dongaoensis, new species, can be distinguished from its congeners M. inflatum Liang & Yan, 1985 by a combination of characters which includes short rostrum, the subequal male second pereiopods, the non–inflated palm, and the longer merus. A diagnosis of three speciesmore and full description of two new species are presented. 


Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 483-492 ◽  
Author(s):  
VERA S. SOROKINA

Two new species in the genera Spilogona Schnabl and Coenosia Meigen are described from Wrangel Island (Spilogonakhrulevae sp. nov. and Coenosia wrangelensis sp. nov.). Their differences from closely related species are shown by theirinclusion in keys to these genera. Coenosia sibirica Hennig is newly recorded from the Russian Arctic. The male terminalia of all species are figured.


1963 ◽  
Vol 95 (2) ◽  
pp. 213-217 ◽  
Author(s):  
G. R. Hopping

The two species described here were discovered during studies on a revision of the Ips of North America. They belong to a group of closely related species composed of Ips tridens (Mann.), I. engelmanni Sw., I. yoboensis Sw., I. pilifrons Sw. and I. sulcifrons Wood. The females in this group have the lower part of the front of the head slightly elevated as in I. yohoensis to very strongly protuberant as in I. tridens. All of them breed in species of spruce. The males of this group are difficult to determine from external characters alone. Descriptions were made under a magnification of 50X, using 100X occasionally.


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