New genus, new species and new records of marine acotylean flatworms (Platyhelminthes: Polycladida: Acotylea) from Oaxaca, southern Mexican Pacific

Zootaxa ◽  
2019 ◽  
Vol 4700 (1) ◽  
pp. 30-58 ◽  
Author(s):  
MARIELA RAMOS-SÁNCHEZ ◽  
JULIANA BAHIA ◽  
J. ROLANDO BASTIDA-ZAVALA

The acotylean polyclads are characterized by the absence of a ventral sucker located posteriorly to the female gonopore. These flatworms are mostly marine, benthic or pelagic, except by two species, one freshwater Limnostylochus borneensis and other semi-terrestrial Myoramyxa pardalota. Oaxaca is a state located in the southern Mexican Pacific, where only three acotyleans species have been formally recorded until now. After sampling littoral to sublittoral zones, a total of 34 specimens were collected and fixed in frozen formalin. Some specimens were stained with Mayer´s carmalum and hematoxylin and cleared in methyl salicylate for whole mounts; the portion containing the reproductive structures of other specimens were dissected and histologically processed in sagittal and frontal sections. Four species were identified as belonging to four genera and three families. The new genus Bisacculosuteri gen. nov. is established, close to the genus Itannia, but lacking double ventral suckers placed on both sides of the female gonopore. Two species are new to science: Bisacculosuteri marcelae sp. nov., characterized by a highly branched central pharynx, prominent seminal vesicle, a penis papilla with stylet, paired strongly muscularized uterine sac and uterine vesicles; and Paraplanocera oligoglenoides sp. nov., with translucent body, light brown pigmentation and black dots distributed in the pharyngeal and reproductive regions, and an oval cirrus sac with intramuscular surrounding hollow spaces and armored with spines and conspicuous teeth. The third species is Euplanoida cf. pacificola that could not be determined as the nominal species, due to ambiguity in its description. The fourth species, Bivesiculoplana lamothei, was previously described from the region and now is recorded in new localities and hosts from Oaxaca. 

2021 ◽  
pp. 139-148
Author(s):  
Jovana Sekulić ◽  
Mirjana Stojanović-Petrović ◽  
Tanja Trakić ◽  
Filip Popović

The aim of this paper is to present the results of the recent collecting earthworms, with new localities and new habitats in Vojvodina Province. The sporadic field investigation was carried out during 2013-2020. In this paper we report new records of Criodrilus lacuum Hoffmeister, 1845 (family Criodrilidae) proved to be new species for the fauna of Vojvodina Province. Also, information on the taxonomic status of individual species was provided. Fifteen earthworm species and subspecies from family Lumbricidae have been registered. Six taxa were found to be synonymous with nominal species, so that the number decreases to 31 species, from 10 genera. Our data demonstrate clearly that the earthworm fauna of the Vojvodina Province is relatively poor, monotonous and that the impact of intensification of agricultural practices effect on loss of soil biodiversity.


2021 ◽  
Vol 740 ◽  
pp. 77-117
Author(s):  
Itzahí Silva-Morales ◽  
Julio D. Gómez-Vásquez

Sipunculans are a poorly studied group in the Tropical Eastern Pacific. For the Southern Mexican Pacific (SMP) there is only one record of a sipunculan species. The main objective of this work was to determine the species composition of the phylum Sipuncula present in the SMP. The study area covered three Mexican states: Guerrero, Oaxaca and Chiapas; specimens from 28 localities were examined from both intertidal and subtidal zones. A total of 551 specimens were reviewed, from which 11 species were identified. Five of them have previously been recorded in the Tropical Eastern Pacific (TEP): Apionsoma (A.) hespera comb. nov., A. (Edmondsius) pectinatum, Aspidosiphon (A.) elegans, Phascolosoma (P.) puntarenae and Themiste (T.) hennahi; four species are similar to nominal species: Sipunculus (S.) cf. polymyotus, Siphonosoma cf. vastum, Siphonosoma cf. cumanense and Phascolosoma (P.) cf. perlucens; and two new species are described: Aspidosiphon (Paraspidosiphon) cutleri sp. nov. and Aspidosiphon (Paraspidosiphon) pastori sp. nov. A checklist and an identification key for all sipunculan species from the TEP are presented. The checklist includes 53 taxa, 25 of which are questionable records. This work generated 11 new records of sipunculans in the SMP and five new records in the TEP.


Zootaxa ◽  
2004 ◽  
Vol 541 (1) ◽  
pp. 1 ◽  
Author(s):  
ODALISCA BREEDY ◽  
HECTOR M. GUZMAN

Four new shallow water species of the genus Pacifigorgia were found in recent surveys along the Pacific coast of Panama. One of the species was only found in dense patches at two shallow seamount-like localities inside the Coiba National Park, Gulf of Chiriqu . Two other species were patchily distributed at several localities in the Gulf of Chiriqu . A fourth species was widely distributed around the gulfs of Chiriqu and Panama encompassing a broad range of habitats and depths. The new species are described and illustrated in detail with scanning electron micrographs (SEM) of the sclerites, and colour photographs of the colony forms. The suspected occurrence of a particular Pacifigorgia species for this region is confirmed and two other new records are added to the species list. With the new four species, a total of 15 are established for Panama, making 31 species for the eastern Pacific to date.


Zootaxa ◽  
2021 ◽  
Vol 4966 (5) ◽  
pp. 550-562
Author(s):  
JORGE PÉREZ-SCHULTHEISS ◽  
GEORGE D. F. WILSON

A new asellotan isopod of the family Protojaniridae Fresi, Idato & Scipione, 1980 is described from freshwater springs in the Osorno province, Los Lagos region, southern Chile. Wiyufiloides osornoensis gen. & sp. n. is the third South American protojanirid species and the first known groundwater isopod in Chile. The new genus and species is principally characterized by the presence of a vestigial antennal scale, a strongly subchelate pereiopod I and the absence of an apical lobe on the protopod of pleopod II. The new taxon is described in detail and figures are given. 


2007 ◽  
Vol 7 (2) ◽  
pp. 281-285 ◽  
Author(s):  
Cristina de Oliveira Dias ◽  
Sérgio Luiz Costa Bonecker

During a series of zooplankton surveys carried out from 2001 through 2005 off the coast of the state of Bahia, Brazil, 98 individuals of monstrilloid copepods were collected. These belong to five species (Monstrilla grandis, Cymbasoma cf. longispinosum, Cymbasoma cf. rigidum, Cymbasoma gracilis, and Cymbasoma quadridens). The first three are recorded for the first time in the Bahia coastal region. The geographical range of C. quadridens is expanded to the Brazilian northeastern coast. The results presented herein increase to nine the number of nominal species of Monstrilloida known from off Bahia; the environmental diversity of Caravelas Channel with highly productive areas and coral reef zones harbor an abundant and diverse monstrilloid fauna that should be surveyed in more detail.


2004 ◽  
Vol 36 (2) ◽  
pp. 163-165 ◽  
Author(s):  
G. Aragón ◽  
I. Martínez ◽  
M. A. G. Otálora

Several epiphytic specimens of the genus Leptogium (Ach.) Gray with a foliose thallus and numerous marginal and laminal isidia collected in central and southern Spain, and previously identified as Leptogium magnussonii Degel. & P. M. Jørg., varied considerably. Two morphological forms have been differentiated: one with clusters of granulose or coralloid, aggregated isidia, identified as typical L. magnussonii and the other with clavate to dactyliform isidia as in L. subaridum P. M. Jørg. & Goward. Meanwhile, when studying the lichen L. lichenoides from some European herbaria, three epiphytic specimens belonging to L. subaridum, one from Morocco, one from Italy and the other from Greece, were identified. These new records of the latter species extend its distribution from NW America to S Europe and N Africa. In addition, mature apothecia are reported for the first time. We briefly characterize the species based on material from the new localities using the morphological and anatomical terminology proposed in Jørgensen (1994).


Check List ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 010 ◽  
Author(s):  
Claudio Correa Quezada ◽  
Edvin Riveros ◽  
Gabriel Lobos ◽  
Nelson Velásquez

The current study reports five new localities of the four-eyed frog Pleurodema thaul (Lesson, 1827) in the extreme north of its distribution (27° to 30° S) in the desertic and semidesertic ravines of Chile, including an increase in its altitudinal range up to 3125 m.


Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 386 ◽  
Author(s):  
Daniel Oliveira Santana ◽  
Renato Gomes Faria ◽  
Francis Luiz Santos Caldasrgipe ◽  
Crizanto Brito De-Carvalho

This article provides new records to Ceratophrys joazeirensis of two new localities from the state of Sergipe, northeast Brazil. These records extend the geographical distribution of the species for municipalities from Poço Redondo and Canindé do São Franscisco. These points are the first records of Ceratophrys joazeirensis for the State of Sergipe.


2011 ◽  
Vol 80 (4) ◽  
pp. 293-300 ◽  
Author(s):  
Dariusz Kubiak

The study presents recent data on the distribution of <em>Fellhanera gyrophorica </em>(Pilocarpaceae, Ascomycota) in Poland, a rare lichen with a crustose, usually sterile thallus. Both previous and new localities of the species are presented with data on its eco­logy and general distribution. Furthermore, this paper provides detailed results on floristic investigations of the species in the forest areas of the Pojezierze Olsztyńskie Lakeland (Northern Poland). Fertile specimens of <em>F. gyrophorica </em>have been observed in Poland for the second time and in the world – for the third time. Also, a new substrate for this species has been found: <em>Acer platanoides</em>. In addition, <em>Carpinus betulus </em>and <em>Populus tremula </em>were also found to be the species' substrates in Poland. Based on this study and previous reports, <em>F. gyrophorica </em>seems to be a relatively common species in north-eastern Poland.


2018 ◽  
Vol 58 (1) ◽  
pp. 35-76 ◽  
Author(s):  
Jindřich Roháček

The family Anthomyzidae (Diptera: Acalyptrata) is recorded from China for the first time based on 11 species, 6 of them new to science. A distinctive new genus Marshallya gen. nov. is described, based on single peculiar species, M. platythorax sp. nov. (both sexes) from Sichuan. Other new species, viz. Amygdalops sevciki sp. nov. (Hainan I.) (both sexes), Epischnomyia tkoci sp. nov. (Sichuan) (male only), Anthomyza ornata sp. nov. (Sichuan) (female only), Anthomyza sulphurea sp. nov. (Yunnan) (both sexes) and Arganthomyza hyperseta sp. nov. (Shaanxi) (male only) are described and illustrated in detail. Male-female association of two Amygdalops species is clarified by means of molecular barcoding and the female of A. bisinus Roháček, 2008 is correctly identifi ed and described. Relationships of all these taxa are discussed. Five species, viz. Amygdalops bisinus (Hainan I.), Epischnomyia merzi Roháček, 2009, Anthomyza cuneata Roháček, 1987, Anthomyza trifurca Sueyoshi & Roháček, 2003 (all from Sichuan) and Arganthomyza versitheca Roháček, 2009 (Shaanxi, Sichuan) are new additions to the Chinese fauna of Anthomyzidae. DNA sequences of the barcoding region of COI have been obtained for 3 species, Amygdalops bisinus, Amygdalops sevciki and Marshallya platythorax. Biology and distribution of all 11 species are discussed. First photographs of living Anthomyzidae from East Asia are presented. Based on knowledge of Anthomyzidae from neighbouring areas the diversity of the Chinese fauna of the family is estimated to include 50-60 species.


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