scholarly journals The tree snail on Rota Island, Northern Mariana Islands, long identified as Partula gibba (Partulidae), is a different species

ZooKeys ◽  
2021 ◽  
Vol 1037 ◽  
pp. 105-118
Author(s):  
David R. Sischo ◽  
Michael G. Hadfield
Keyword(s):  
New Species ◽  
Molecular Phylogenetics ◽  
Small Island ◽  
Mariana Islands ◽  
Population Declines ◽  
Northern Mariana Islands ◽  
The North ◽  
Extant Species ◽  
Introduced Predators ◽  
The Family

Tree snails in the family Partulidae are widespread across the tropical Pacific, with endemic species occurring on most high islands. Partulid species have faced catastrophic range reductions and extinctions due primarily to introduced predators. Consequently, most extant species are threatened with imminent extinction. The U.S. administered Mariana Islands, consisting of Guam in the South and the Commonwealth of the Northern Mariana Islands (CNMI) in the north, historically harbored six endemic partulid species, half of which are thought to be extinct. While conducting a phylogenetic assessment of Partula gibba, an extant tree-snail with a range spanning at least seven islands within the archipelago, it was discovered that what has been identified as P. gibba on the island of Rota is a misidentified cryptic species. Here we use molecular phylogenetics, shell morphometrics and reproductive anatomy to describe it as a new species, Partula lutaensissp. nov.. Because the new species has suffered population declines and has a restricted range, consisting solely of the small island of Rota, we highlight the urgent need for conservation measures.

scholarly journals Two unusual new species of Caleremaeus (Acari: Oribatida) from eastern North America, with redescription of C. retractus and reevaluation of the genus

Acarologia ◽  
2020 ◽  
Vol 60 (2) ◽  
pp. 398-448
Author(s):  
Roy A. Norton ◽  
Valerie M. Behan-Pelletier
Keyword(s):  
New Species ◽  
Oribatid Mite ◽  
Adult Size ◽  
Transverse Ridge ◽  
Fossil Species ◽  
The North ◽  
Extant Species ◽  
The Family ◽  
Eastern Usa

The oribatid mite genus Caleremaeus (Caleremaeidae) is widely distributed in the northern hemisphere but has been represented by only three extant and one fossil species. We redescribe the North American C. retractus (Banks, 1947) based on adults and nymphs; it is distinguishable from the European type species, C. monilipes (Michael, 1882) by its smaller adult size and minor differences in cuticular structure, and by the elongated, tapered form of seta h1 in nymphs. Two new species are proposed: C. nasutus n. sp. from forest soil in Alabama is unique in having adults with a large anterior rostral lobe (juveniles unknown) bearing lamellar setae; the arboreal C. arboricolus n. sp. from eastern USA and Canada is unique among described extant species in having adults with femoral saccules, a transverse ridge bearing lamellar setae and relatively large notogastral setae, and juveniles with a bothridial seta similar to that of the adult. Based on all available data, Caleremaeus is redescribed and considered the sole genus in Caleremaeidae. The higher classification of the family is reviewed, and past placement in Ameroidea is rejected in favor of the monofamilial Caleremaeoidea.

A New Gunnel, Pholis clemensi, from the Coast of Western North America

1964 ◽  
Vol 21 (5) ◽  
pp. 933-939 ◽  
Author(s):  
Richard H. Rosenblatt
Keyword(s):  
British Columbia ◽  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Western North America ◽  
The North ◽  
The Family ◽  
Juan De Fuca ◽  
A New Species

A new species, Pholis clemensi, referred to the family Pholidae, is named and described from 12 specimens taken in southern British Columbia waters and the Strait of Juan de Fuca. Pholis clemensi is compared with other members of the genus, and a key is given to the North American species.

The family Onychiuridae (Collembola) from karst caves of the Basque biospeleologic district, with description of four new species

Zootaxa ◽  
2021 ◽  
Vol 5040 (2) ◽  
pp. 151-194
Author(s):  
ENRIQUE BERUETE ◽  
JAVIER I. ARBEA ◽  
ENRIQUE BAQUERO ◽  
RAFAEL JORDANA
Keyword(s):  
New Species ◽  
Iberian Peninsula ◽  
Original Description ◽  
Karst Caves ◽  
The North ◽  
The Family ◽  
New Material

The study of Onychiuridae from 42 caves of the north of the Iberian Peninsula and southwestern France has revealed the existence of 32 species inhabiting the caves of the Basque bio-speleological district, among which four new species are described: Deuteraphorura bizkaiensis sp. nov., Deuteraphorura bolivari sp. nov., Onychiurus arbailakensis sp. nov. and Protaphorura leitzaldeaensis sp. nov. Furthermore, three species, Deuteraphorura boneti (Gisin, 1953), Deuteraphorura akelaris (Jordana & Beruete, 1983) and Spinonychiurus vandeli (Cassagnau, 1960), are redescribed based on type and new material to furnish the description of some characters, especially concerning the chaetotaxy, not considered in the original description. Keys to the recorded species are also reported.  

A revision of the Heatherellidae (Parasitiformes: Mesostigmata) with a new genus and two new species from Australasia

Zootaxa ◽  
2018 ◽  
Vol 4434 (3) ◽  
pp. 441
Author(s):  
OWEN D. SEEMAN ◽  
MARIA MINOR ◽  
MICHELLE R. BAKER ◽  
DAVID EVANS WALTER
Keyword(s):  
New Species ◽  
New Zealand ◽  
Sexual Dimorphism ◽  
New Genus ◽  
New South ◽  
New South Wales ◽  
The North ◽  
South Wales ◽  
The Family ◽  
Two New Species

The discovery of a new genus of Heatherellidae in New Zealand has led us to revise this enigmatic family and its constituent genera. Aheatherella n. gen., based on A. mira n. sp. from the North Island of New Zealand, lacks some of the derived character states that link the Australian Heatherella, most notably the lack of sexual dimorphism in the dorsal shields and in the presence of peritremes in adult Aheatherella. Heatherella osleri n. sp. is described from New South Wales, extending the distribution of this genus beyond Queensland. New collection records of H. callimaulos and a key to the genera and species of the family are provided. We propose that the Heatherellidae—previously placed in its own cohort outside the Gamasina—are best considered a superfamily of gamasine mites within the subcohort Epicriiae. 

New species of Doratomantispa from the mid-Cretaceous of northern Myanmar (Insecta, Neuroptera, Mantispidae)

2019 ◽  
Vol 2 (5) ◽  
pp. 446-452 ◽  
Author(s):  
CHAOFAN SHI ◽  
QIANG YANG ◽  
CONGSHUANG DENG ◽  
HONG PANG ◽  
DONG REN
Keyword(s):  
New Species ◽  
Early Jurassic ◽  
Extant Species ◽  
The Family

Mantispidae is a lacewing family with over 400 extant species (Ohl, 2004, 2007; Oswald, 2015). The family is divided into four extant subfamilies Symphrasinae, Drepanicinae, Calomantispinae, Mantispinae and one extinct subfamily Mesomantispinae (Lambkin, 1986a, b; Wedmann & Makarkin, 2007). The living mantispids are distributed cosmopolitan except Antarctica. Fossil mantispids have been recorded since Early Jurassic (Ansorge & Schlüter, 1990; Wedmann & Makarkin, 2007; Khramov, 2013; Jepson et al., 2013, 2018a, b; Shi et al., 2019). The fossils are mainly from the Eurasia, with exception of two Miocene genera from Mexican and Dominican (Engel & Grimaldi, 2007).

Calathiscus tantillus, a new genus and new species of scleractinian coral (Scleractinia, Poritidae) from the Gulf of Oman

Zootaxa ◽  
2004 ◽  
Vol 532 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHEL R. CLAEREBOUDT ◽  
ISSA S. AL-AMRI
Keyword(s):  
New Species ◽  
New Genus ◽  
Growth Form ◽  
North Coast ◽  
Sultanate Of Oman ◽  
Oral Disc ◽  
Gulf Of Oman ◽  
The North ◽  
Massive Growth ◽  
The Family

Calathiscus tantillus new genus & new species (Scleractinia, Poritidae) is described from several specimens collected along the north coast of the Sultanate of Oman and Masirah Island. The zooxanthellate genus has a massive growth form, although colonies remain very small (< 40 mm). The skeletal characteristics are intermediate between Porites and Goniopora, with calices averaging 1.7 mm in diameter. The polyps, fully extended during the day in most specimens, have a long tubular column topped by a wide conical oral disc surrounded by 15 22 tentacles. The characteristics of this new species and genus are discussed in relation to other genera in the family: Porites, Goniopora, Stylarea, Alveopora and Poritipora.

scholarly journals Description of a new species Gyraulus (Pulmonata: Planorbidae) from the land thermal spring Khakusy of Lake Baikal

ZooKeys ◽  
2018 ◽  
Vol 762 ◽  
pp. 1-12 ◽  
Author(s):  
Tatiana Sitnikova ◽  
Tatiana Peretolchina
Keyword(s):  
New Species ◽  
Lake Baikal ◽  
Thermal Spring ◽  
Morphological Characters ◽  
Shell Size ◽  
The North ◽  
The Family ◽  
North Eastern ◽  
Small Shell ◽  
A New Species

A new species of the family Planorbidae is described from the land thermal spring Khakusy, on the north-eastern shore of Lake Baikal. The description of Gyraulustakhteevi sp. n. includes morphological characters and gene sequences (COI of mtDNA) for the species separation from sister taxon Gyraulusacronicus (A. Férussac, 1807) collected from the small Krestovka River in-flowing into the south-western part of the Lake. The new species differs from G.acronicus in small shell size of adults, having smaller number of prostate folds (maximal up to 26 in G.takhteevi n. sp. vs. 40 in G.acronicus), a short preputium (approximately twice shorter than the phallotheca), and an elongated bursa copulatrix. The population of Gyraulustakhteevi sp. n. consists of two co-existent morphs: one of them has a narrow shell spire and the second is characterized by wide spire similar to the shell of G.acronicus. One of the two revealed haplotypes of the new species includes both morphs, while the second consists of snails with wide spired shells.

scholarly journals New species of deep-sea Antipatharians from the North Pacific (Cnidaria: Anthozoa: Antipatharia), Part 2

Zootaxa ◽  
2021 ◽  
Vol 4999 (5) ◽  
pp. 401-422
Author(s):  
DENNIS M. OPRESKO ◽  
TINA N. MOLODTSOVA
Keyword(s):  
New Species ◽  
North Pacific ◽  
Deep Sea ◽  
Type Material ◽  
Poor Condition ◽  
Incertae Sedis ◽  
The North ◽  
The Poor ◽  
The Family ◽  
The North Pacific

Five new species of deep-sea antipatharian corals are described from the North Pacific primarily collected off the coast of Alaska and on adjacent seamounts. All the species are referred to the family Schizopathidae. Described as new are: Alternatipathes mirabilis, Bathypathes ptiloides, Bathypathes tiburonae, Bathypathes alaskensis, and Parantipathes pluma. Illustrations of the type material of Bathypathes patula, B. patula var. plenispina and B. tenuis are provided for comparative proposes. Bathypathes patula var. plenispina is here recognized as a species distinct from B. patula, and B. tenuis is considered incertae sedis due to the poor condition of the type material.

A new species of the asteroid genus Betelgeusia (Echinodermata) from methane seep settings, Late Cretaceous of South Dakota

2018 ◽  
Vol 92 (2) ◽  
pp. 196-206 ◽  
Author(s):  
Daniel B. Blake ◽  
William K. Halligan ◽  
Neal L. Larson
Keyword(s):  
New Species ◽  
South Dakota ◽  
North Pacific Ocean ◽  
Phylogenetic Analyses ◽  
Comparative Morphology ◽  
Molecular Study ◽  
Methane Seep ◽  
Crown Group ◽  
The North ◽  
The Family

AbstractBetelgeusia brezinai new species (Radiasteridae, Paxillosida, Asteroidea) is described from diversely fossiliferous Upper Cretaceous methane seep deposits of South Dakota. Asteroids are rare at modern chemosynthetic settings, although a hydrothermal vent occurrence is known, and two possible fossil methane seep occurrences have been reported. The Radiasteridae is important to the interpretation of crown-group asteroid phylogeny. Two extant genera are assigned to the family: Radiaster is known from relatively few but geographically widely dispersed largely deeper-water settings, and Gephyreaster is uncommon over a range of depths in the North Pacific Ocean. Jurassic and Cretaceous radiasterids have been described from geographically widely separated localities. In morphological-based phylogenetic analyses, the Radiasteridae has been assigned to the order Paxillosida, and Gephyreaster is similarly placed in a molecular evaluation; Radiaster has not yet been treated in a molecular study. In molecular treatment, an approximately traditional Paxillosida is a sister taxon to a significant part of the traditional Valvatida. Comparative morphology of Mesozoic and extant asteroids enables a hypothesis for a stemward, Mesozoic paxillosidan.

Additions and Revisions to the Genera of North American Caddisflies of the Family Brachycentridae With Special Reference to the Larval Stages (Trichoptera)

1965 ◽  
Vol 97 (10) ◽  
pp. 1089-1106 ◽  
Author(s):  
Glenn B. Wiggins
Keyword(s):  
New Species ◽  
North American ◽  
Larval Stage ◽  
New Genus ◽  
New Genera ◽  
Larval Morphology ◽  
Larval Stages ◽  
The North ◽  
The Family ◽  
A New Species

AbstractLarval characterizations for the genera of North American Brachycentridae are revised and two new genera created, bringing to five the total number now recognized on this continent. Previous concepts of larval morphology inMicrasemaare emended. Discovery of the larval stage ofBrachycentrus(Amiocentrus)aspilusRoss necessitates elevation of this subgenus to generic status. Association of larvae with the two North American species placed inOligoplectrumnecessitates removal of one,O.dimicki(Milne), toMicrasema. Discovery of all stages of a new species on Mount Hood, Oregon, necessitates creation of a new genus. A provisional larval key to the genera of the North American Brachycentridae is proposed and the phylogenetic relationships of the genera are discussed. Validity of the Asian genusOligoplectrodesis questioned.

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