Alcolyra, a new genus of leucosiid crab (Crustacea: Decapoda: Brachyura) from India

Zootaxa ◽  
2022 ◽  
Vol 5091 (2) ◽  
pp. 383-392
Author(s):  
JIGNESHKUMAR N. TRIVEDI ◽  
SANTANU MITRA ◽  
PETER K. L. NG

The identity of Philyra alcocki Kemp, 1915 (Leucosiidae), a species described from Chilika Lake, India is clarified. The redescription of lectotype male and examination of fresh material collected from Chilika Lake, Odisha state of India revealed that P. alcocki is significantly different morphologically from members of Philyra senso stricto and other allied genera in possessing two tuberculated rows on the branchial region of carapace, and a well-developed tubercle on male thoracic sternite 5 on either side of the sternopleonal cavity. Therefore, a new genus Alcolyra n. gen. is established herewith for the species.  

1918 ◽  
Vol 5 (10) ◽  
pp. 434-450 ◽  
Author(s):  
Wheelton Hind

Part III of the Catalogue of the Fossil Cephalopoda in the British Museum (Nat. Hist.), by A. H. Foord and G. C. Crick, was published in 1897. Since then much fresh material has come into my hands and it is now possible to give much more accurate and fuller details of the horizons and localities at which the various species occur. This is of special importance, in view of the fact that the Goniatites can be used as zone indices of the Carboniferous Series from the upper part of the Dibunophyllum beds (D2 of Dr. Vaughan) up to the Middle Coal-measures. This I showed to be the case in my Presidential address to the Yorkshire Naturalists' Union, and published in the Naturalist, April to July, 1909, and elsewhere. Many details have, however, been added since then, and an elaborated and emended table will be published in a forthcoming paper by myself and Dr. Wilmore, F.G.S., on the Carboniferous succession of some Midland areas.


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8633 ◽  
Author(s):  
Kátia C.C. Capel ◽  
Cataixa López ◽  
Irene Moltó-Martín ◽  
Carla Zilberberg ◽  
Joel C. Creed ◽  
...  

Atlantia is described as a new genus pertaining to the family Dendrophylliidae (Anthozoa, Scleractinia) based on specimens from Cape Verde, eastern Atlantic. This taxon was first recognized as Enallopsammia micranthus and later described as a new species, Tubastraea caboverdiana, which then changed the status of the genus Tubastraea as native to the Atlantic Ocean. Here, based on morphological and molecular analyses, we compare fresh material of T. caboverdiana to other dendrophylliid genera and describe it as a new genus named Atlantia in order to better accommodate this species. Evolutionary reconstruction based on two mitochondrial and one nuclear marker for 67 dendrophylliids and one poritid species recovered A. caboverdiana as an isolated clade not related to Tubastraea and more closely related to Dendrophyllia cornigera and Leptopsammia pruvoti. Atlantia differs from Tubastraea by having a phaceloid to dendroid growth form with new corallites budding at an acute angle from the theca of a parent corallite. The genus also has normally arranged septa (not Portualès Plan), poorly developed columella, and a shallow-water distribution all supporting the classification as a new genus. Our results corroborate the monophyly of the genus Tubastraea and reiterate the Atlantic non-indigenous status for the genus. In the light of the results presented herein, we recommend an extensive review of shallow-water dendrophylliids from the Eastern Atlantic.


Phytotaxa ◽  
2015 ◽  
Vol 219 (1) ◽  
pp. 43 ◽  
Author(s):  
Carmine Lavorato ◽  
Alfredo Vizzini ◽  
Zai-Wei Ge ◽  
Marco Contu

Clitocybe umbrinopurpurascens, a rare species thus far known only from Morocco, is redescribed based on fresh collections made in Calabria (South Italy). Photographs of fresh material and drawings of the main micromorphological features of the species are provided. The type collection, in poor condition and not suitable for molecular analysis, was restudied macro- and micromorphologically and was found fully identical with the collections from Calabria. Based on molecular data, this species  belongs to the genus Pseudoomphalina (type Omphalia kalchbrenneri) and the genus Neohygrophorus is treated as a synonym of Pseudoomphalina. A collection from Calabria is chosen as an epitype for P. umbrinopurpurascens. Our morphological and molecular revision of other Pseudoomphalina species did not provide evidence supporting the placement of  Agaricus pachyphyllus in Pseudomphalina, or any other of the allied genera, therefore, for this species the new genus Pseudolaccaria is introduced. As there are no extant original herbarium specimens, a lectotype and epitype for Omphalia kalchbrenneri and a neotype for Agaricus pachyphyllus are designated.


Phytotaxa ◽  
2018 ◽  
Vol 362 (2) ◽  
pp. 173
Author(s):  
PETR HAŠLER ◽  
ALLAN PENTECOST ◽  
EVA JAHODÁŘOVÁ ◽  
PETR DVOŘÁK ◽  
ALOISIE POULÍČKOVÁ

We investigated type material of Ulva montana (Lightfoot 1777: 973) and compared it with the type material of Gloeocapsa magma Brébisson in Brébisson & Godey (1835: 40) and fresh material from nature. Our investigation indicates a separate evolutionary lineage of U. montana which possesses specific morphological features differing from the most closely related genera Gloeocapsa, Gloeocapsopsis and Chroococcus. We propose a new genus Lightfootiella gen. nov. based on the new combination Lightfootiella montana comb. nov. We revise the taxonomy of this entity and compare this species with Gloeocapsopsis magma sensu (Brébisson) Komárek & Anagnostidis 1986.


Zootaxa ◽  
2018 ◽  
Vol 4471 (2) ◽  
pp. 351
Author(s):  
THAÍS MELO DE ALMEIDA ◽  
ROWLAND M. SHELLEY ◽  
JOSÉ ALBERTINO RAFAEL

The monotypic taxon Xanthotropis n. gen. is established to accommodate Haematotropis media Golovatch, Hoffman & Spelda, 2004, known only from the vicinity of Manaus, Brazil, as it is incompatible with both its originally assigned genus and Aphelidesmus Brölemann, 1898, a suggested alternative. Xanthotropis is defined primarily by minute teeth on paranota 2–4, a sublinear posterior margin of the telson, and an elongated, distally expanded/laminate acropodite. The Aphelidesmidae Brölemann, 1916, range from northeastern Mexico and Tobago to northern Brazil and southwestern Peru; a questionable more-northerly record, from Monterey, Mexico, requires verification with fresh material. One of two families of the polydesmidan superfamily Platyrhacoidea (Leptodesmidea), Aphelidesmidae comprises two subfamilies, the nominate and Amplininae Hoffman, 1954. The latter has been addressed by several authors, and we here review Aphelidesminae by providing full synonymies, a literature review, and a key to its four genera: Aphelidesmus Brölemann, 1898; Haematotropis and Ochrotropis, both by Jeekel, 2000; and Xanthotropis n. gen. 


2015 ◽  
Vol 94 (3) ◽  
pp. 279-288 ◽  
Author(s):  
Gambit van der Brugghen

AbstractA new genus and species of euphaneropid, Ciderius cooperi, is recorded from the Lower Silurian Fish Bed Formation of the Midland Valley of Scotland on the basis of articulated material. Euphaneropids constitute an enigmatic group which is known from Devonian deposits in Scotland and Canada. The new find adds to our understanding of this group, in particular with regard to the morphology of some common anatomical elements. The paired head stains are here shown to contain clefts which can be interpreted as optic fissures, indicating that these are the remains of eyes. The anterior head stain is reconstructed and demonstrated to be a barrel-shaped object of an uncertain nature. Paired mineralisations situated in the posterior part of the cranial region appear to represent remains of the parachordals, while fossilised blood vessels might be preserved in the form of black lines which mark a greatly elongated branchial region, similar to euphaneropids. Serially repetitive rows of short horizontal stripes on the posterior half of the body are unique for the new taxo, but their interpretation is problematic.


Author(s):  
R. O. Brinkhurst

A re-investigation of fresh material makes it necessary to create the new genus Thalassodrilus for T. prostatus (Knollner). Careful adherence to generic and specific criteria as detailed leads to the recognition of nineteen brackish-water and marine Tubificidae, and some dubious entities are also listed.


Zootaxa ◽  
2018 ◽  
Vol 4480 (1) ◽  
pp. 1 ◽  
Author(s):  
ISABEL C. MOLINA-ACEVEDO

Fifteen species of Marphysa classified in the Subgroup 1 Fauchald (1970) were reviewed and evaluated in a morphological analysis of the subgroup. It was found that 13 of these have a characteristic morphological pattern distinct from that of Marphysa sensu stricto; as a consequence, a new genus is proposed, Paucibranchia n. gen. This new genus includes the species that have branchiae restricted to a few chaetigers in the anterior region, maxillae I with a rounded falcal arch and outer edge with a straight base plus a curvature in the basal inner edge, dorsal cirri longer in the branchial region and in media-posterior region as long or longer than pre-branchial chaetigers, and the postchaetal lobe in the branchial region well developed, elongated. Paucibranchia n. gen. includes six new species (P. andresi n. sp., P. carrerai n. sp., P. gathofi n. sp., P. gilberti n. sp., P. miroi n. sp. and P. patriciae n. sp.), two species not formally named, and other 13 species previously included in Marphysa (P. adenensis (Gravier, 1900) n. comb., P. bellii (Audouin & Milne-Edwards, 1833) n. comb., P. cinari (Kurt-Sahin, 2014) n. comb., P. conferta (Moore, 1911) n. comb., P. disjuncta (Hartman, 1961) n. comb., P. fallax (Marion & Bobretzky, 1875) n. comb., P. gemmata (Mohammad, 1973) n. comb., P. kinbergi (McIntosh, 1910) n. comb., P. oculata (Treadwell, 1921) n. comb., P. purcellana (Willey, 1904) n. comb., P. sinensis (Monro, 1934) n. comb., P. stragula (Grube, 1878) n. comb., P. totospinata (Lu & Fauchald, 1998) n. comb.). One species previously classified in the subgroup, Marphysa striata (Kinberg, 1865), was considered indeterminate. Finally, some statistical analyses on size dependent features and an identification key for species of the new genus were included. 


1976 ◽  
Vol 87 (5) ◽  
pp. 289-292
Author(s):  
J. T. Williams ◽  
A. J. Scott ◽  
B. V. Ford-Lloyd
Keyword(s):  

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