Two new millipede species of the genus Riukiaria (Diplopoda, Polydesmida, Xystodesmidae) endemic to the Ryukyu Archipelago, Japan

Zootaxa ◽  
2011 ◽  
Vol 2877 (1) ◽  
pp. 55 ◽  
Author(s):  
ZOLTÁN KORSÓS ◽  
YASUYUKI NAKAMURA ◽  
TSUTOMU TANABE
Keyword(s):  
New Species ◽  
Ryukyu Archipelago ◽  
Color Patterns ◽  
Unique Color ◽  
Two New Species ◽  
Island Group

We describe two new species of the millipede genus Riukiaria from two islands of the Ryukyu Archipelago: R. maculata sp. n. from Tane-ga-shima, northern Ryukyus, and R. mundyi sp. n. from Yonaguni-jima, the southwesternmost member of the Yaeyama Island Group. Both species show the simple forceps-like male gonopod structure typical for the genus, but they are readily distinguishable from other members by their unique color patterns. We have also compiled a list of species in the genus described up to now.

A new species of Plestiodon (Squamata: Scincidae) from the Senkaku Group, Ryukyu Archipelago, Japan

Zootaxa ◽  
2017 ◽  
Vol 4254 (5) ◽  
pp. 520 ◽  
Author(s):  
KAZUKI KURITA ◽  
HIDETOSHI OTA ◽  
TSUTOMU HIKIDA
Keyword(s):  
New Species ◽  
Species Group ◽  
Morphological Features ◽  
Posterior Surface ◽  
Ryukyu Archipelago ◽  
Molecular Analyses ◽  
Conservation Implications ◽  
Island Group ◽  
A New Species

A new scincid lizard, Plestiodon takarai sp. nov., is described from the Senkaku Group, Ryukyu Archipelago, Japan. The Plestiodon lizards in this island group have previously been identified as P. elegans because they all exhibit a patch of enlarged and irregularly arranged scales on the posterior surface of their femurs. However, detailed molecular analyses revealed that the Senkaku population, although closely related to P. elegans and other species in the P. latiscutatus species group, is substantially diverged from all other recognized species. Furthermore, although the Senkaku population largely exhibits the characteristic morphological features of this species group, it can be differentiated from all recognized species by the scutellation and hatchling tail coloration. The biogeographical and conservation implications of these findings are briefly discussed. 

Ecsenius caeruliventris and E. shirleyae, two new species of blenniid fishes from Indonesia, and new distribution records for other species of Ecsenius

Zootaxa ◽  
2004 ◽  
Vol 791 (1) ◽  
pp. 1 ◽  
Author(s):  
VICTOR G. SPRINGER ◽  
GERALD R. ALLEN
Keyword(s):  
New Species ◽  
Species Group ◽  
Color Patterns ◽  
Two New Species ◽  
New Distribution

Ecsenius caeruliventris is described from the Banggai and Togean islands, closely adjacent to the mid-NE coast of Sulawesi. Ecsenius shirleyae is described from various islands situated between 106 02 E and 05 08 S. Both species are members of the Prooculis species group of Ecsenius, which now comprises eight species and which are differentiated from each other solely on the basis of color patterns. All of the species are distributed allopatrically except for E. bimaculatus, which, in the southern part of its range, occurs sympatrically with E. caeruliventris and, probably, E. shirleyae. New distributional records are provided for several species of Ecsenius.

scholarly journals Redescription of Orobdella ijimai (Hirudinida: Arhynchobdellida: Gastrostomobdellidae), and two new species of Orobdella from the Ryukyu Archipelago, Japan

Zootaxa ◽  
2011 ◽  
Vol 2998 (1) ◽  
pp. 1 ◽  
Author(s):  
TAKAFUMI NAKANO
Keyword(s):  
New Species ◽  
Type Locality ◽  
Genital Organ ◽  
Ryukyu Archipelago ◽  
Two New Species ◽  
Male Genital Organ ◽  
Male Genital

Sexannulate Orobdella leech, Orobdella ijimai, is redescribed based on newly collected specimens from the type locality, Nikko, Tochigi Pref., Japan, since this species was originally described based on limited number of characters. In addition, two new sexannulate species, Orobdella dolichopharynx sp. nov. from Amamioshima Island in the Ryukyu Archipelago, Japan, and Orobdella shimadae sp. nov. from Okinawajima Island also in the Ryukyu Archipelago, are described. They resemble O. ijimai in the annulation of mid-body somites, but they differ from the latter in the annulation of somite VIII, position of gonopores, the lack of gastropore, the length of pharynx, the shape of gastroporal duct, and the morphology of male genital organ. Two new Orobdella species differ from each other in the annulation of somite VII, the position of gonopores, and the shape of gastroporal duct. In accordance with the two new species, the diagnosis of Orobdella is slightly emended.

Two new species of Cephennomicrus in the Ryūkyū Archipelago (Coleoptera, Staphylinidae, Scydmaeninae)

Zootaxa ◽  
2021 ◽  
Vol 4938 (5) ◽  
pp. 581-587
Author(s):  
PAWEŁ JAŁOSZYŃSKI
Keyword(s):  
New Species ◽  
Body Length ◽  
Ryukyu Archipelago ◽  
Distribution Map ◽  
Japanese Species ◽  
Okinawa Island ◽  
True Diversity ◽  
Two New Species ◽  
Holotype Male

Ten species of Cephennomicrus are currently known to occur in Japan, predominantly in the Ryūkyū Archipelago. These extremely small beetles (adults of Japanese species do not exceed 1.2 mm) are rarely collected, and their true diversity may be in fact much greater. Two more species are described in the present study: C. aji sp. n. inhabiting Okinawa island, and C. ushimanus sp. n. found on Amami Ôshima island. Cephennomicrus aji has the smallest adults of all Japanese Scydmaeninae; the holotype male measures merely 0.66 mm of body length. The distribution of Japanese Cephennomicrus species is summarized, with the aedeagus of each species illustrated on the distribution map, to facilitate identifications and further study on this broadly distributed but poorly known cephenniine genus. 

Description of Two New Species of the Genus Gekko (Squamata: Gekkonidae) from the Tokara and Amami Island Groups in the Ryukyu Archipelago, Japan

Copeia ◽  
2008 ◽  
Vol 2008 (2) ◽  
pp. 452-466 ◽  
Author(s):  
Mamoru Toda ◽  
Showichi Sengoku ◽  
Tsutomu Hikida ◽  
Hidetoshi Ota
Keyword(s):  
New Species ◽  
Ryukyu Archipelago ◽  
Two New Species
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