Rediscovery of the sponge crab Cryptodromia fallax (Latreille in Milbert, 1812) (Decapoda: Brachyura: Dromiidae) at Mauritius, with the description of a new genus and the confirmation of an unusual seaweed-carrying camouflage mode

2019 ◽  
Vol 40 (1) ◽  
pp. 82-88
Author(s):  
Colin L McLay
Keyword(s):  
Green Alga ◽  
Brown Alga ◽  
New Genus ◽  
Ulva Lactuca ◽  
Lobophora Variegata ◽  
New Information ◽  
Structural Differences ◽  
New Material

Abstract Cryptodromia fallax (Latreille in Milbert, 1812) has been serendipitously found again on the island of Mauritius, almost 200 yrs after its discovery. The new material provides new information about the structure of the female sternum, providing stronger evidence that a new genus, Alcockdromiagen. nov., is required. Observations show that this crab cuts out and carries pieces of seaweed in the manner of a paraglider, rather than pieces of sponge normally carried by dromiid crabs. The crab uses Ulva lactuca Linnaeus, a green alga, and Lobophora variegata (J.V. Lamouroux), a brown alga. This discovery shows that the last two prehensile dromiid pereopods, which are used to carry soft camouflage, are multi-purpose, having only minor structural differences allowing them to carry seaweeds.

scholarly journals Sterol composition of the Adriatic sea algae Ulva lactuca, Codium dichotomum, Cystoseira adriatica and Fucus virsoides

2005 ◽  
Vol 70 (12) ◽  
pp. 1395-1400 ◽  
Author(s):  
Radomir Kapetanovic ◽  
Dusan Sladic ◽  
Simeon Popov ◽  
Mario Zlatovic ◽  
Zoran Kljajic ◽  
...  
Keyword(s):  
Green Algae ◽  
Green Alga ◽  
Brown Algae ◽  
Brown Alga ◽  
Adriatic Sea ◽  
Sterol Composition ◽  
Ulva Lactuca ◽  
The South ◽  
Low Concentration

The sterol composition of two green algae and two brown algae from the South Adriatic was determined. In the green alga Ulva lactuca, the principal sterols were cholesterol and isofucosterol. In the brown alga Cystoseira adriatica, the main sterols were cholesterol and stigmast-5-en-3?-ol, while the characteristic sterol of the brown algae, fucosterol, was found only in low concentration. The sterol fractions of the green alga Codium dichotomum and the brown alga Fucus virsoides contained practically only one sterol each, comprising more than 90 % of the total sterols (clerosterol in the former and fucosterol in the latter).

Antihyperuricemic Effect of Green Alga Ulva lactuca Ulvan through Regulating Urate Transporters

2021 ◽  
Author(s):  
Xiaoqing Li ◽  
Yihan Chen ◽  
Xiaoxiang Gao ◽  
Yijing Wu ◽  
Hesham Rushdy El-Seedi ◽  
...  
Keyword(s):  
Green Alga ◽  
Ulva Lactuca

scholarly journals Polulichloris henanensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel subaerial coccoid green alga

Phytotaxa ◽  
2015 ◽  
Vol 218 (2) ◽  
pp. 137 ◽  
Author(s):  
Huiyin Song ◽  
Qi Zhang ◽  
Guoxiang Liu ◽  
Zhengyu Hu
Keyword(s):  
Green Alga ◽  
New Genus ◽  
Cultured Cells ◽  
Phylogenetic Analyses ◽  
Light And Electron Microscopy ◽  
Molecular Data ◽  
Ribulose Bisphosphate Carboxylase ◽  
Bisphosphate Carboxylase ◽  
Molecular Phylogenetic ◽  
18S Rdna Gene

Coccoid green algae are abundant in subaerial habitats, but they are largely unexplored because of their morphological uniformity. Several new genus-level lineages have recently been described on the basis of molecular data. In this study, a coccoid green alga was isolated from surface soil in Zhoukou, Henan Province, China, and the cultured cells were described using light and electron microscopy. The ellipsoidal cell had smooth cell wall and parietal chloroplast with a pyrenoid surrounded by a starch envelope. Reproduction occurred by formation of 2‒16 autospores. Molecular phylogenetic analyses based on the nuclear 18S rDNA gene and the chloroplast ribulose-bisphosphate carboxylase gene (rbcL) indicated that this coccoid green alga represents a new lineage of the Watanabea clade (Trebouxiophyceae, Chlorophyta). Here, we describe this organism as a new genus and species, Polulichloris henanensis, gen. et sp. nov.

Phylogenetic relationships and evolution of reproductive modes within flattened syllids (Annelida : Syllidae) with the description of a new genus and six new species

2018 ◽  
Vol 32 (1) ◽  
pp. 224 ◽  
Author(s):  
Patricia Álvarez-Campos ◽  
Sergio Taboada ◽  
Guillermo San Martín ◽  
Carlos Leiva ◽  
Ana Riesgo
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Reproductive Strategy ◽  
New Genus ◽  
Entire Group ◽  
Reproductive Modes ◽  
Taxonomic Descriptions ◽  
The Status ◽  
New Material ◽  
Phylogenetic Hypotheses

Syllid annelids from the so-called ‘ribbon clade’ are flattened, ribbon-shaped worms of the genera Parahaplosyllis Hartmann-Schröder, 1990, Eurysyllis Ehlers, 1864, Xenosyllis Marion & Bobretzky, 1875, Trypanosyllis Claparède, 1864, Ramisyllis Glasby, Schroeder & Aguado, 2012, Trypanobia Imajima & Hartman, 1964, Plakosyllis Hartmann-Schröder, 1956, Pseudosyllis Grube, 1863 and Trypanedenta Imajima & Hartman, 1964. Some species possess a remarkable reproductive strategy using multiple stolons that has been recently suggested to be ancestral to the group. Here, to evaluate the evolution of reproductive modes in the group, we assess, for the first time, the phylogenetic relationships within the ribbon clade and related genera. We collected new material of Trypanobia and Trypanosyllis from Japan, Spain, Philippines and Indonesia and sequenced it for the nuclear markers 18S rRNA and the mitochondrial markers 16S rRNA and cytochrome c oxidase I for phylogenetic inference and also performed ancestral character reconstruction for the reproductive strategy in the entire group. Formal taxonomic descriptions of a new genus and six new species are provided. The new genus, Trypanospina, gen. nov., is characterised by the spines that cover its surface. Most genera within the ‘ribbon clade’ are monophyletic and the relationships appeared well supported in most cases. However, our phylogenetic hypotheses are not conclusive in regard to the relationships of the genera Trypanedenta and Trypanobia, nor to the status of those to genera as distinctive, since they seem to be paraphyletic and they appear in low-supported clades. In contrast, our results shed light on the evolution of the reproductive modes within the group, showing that scissiparity (development of a single stolon each time) is the ancestral character for the entire group and gemmiparity (development of more than one stolon at the same time) then appeared twice in two independent clades.

XII.—On the Structure of Samaropsis scotica Calder (emended) and Eurystoma angulare gen. et sp. nov., Petrified Seeds from the Calciferous Sandstone Series of Berwickshire

1960 ◽  
Vol 64 (12) ◽  
pp. 261-280 ◽  
Author(s):  
Albert G. Long
Keyword(s):  
New Genus ◽  
New Genera ◽  
Lower Carboniferous ◽  
New Material

SynopsisThe Lower Carboniferous seed Samaropsis scotica Calder has been re-investigated from new material and assigned to a new genus Lyrasperma. It is shown to have a nucellar apex with a pollen chamber and a funnel-like structure interpreted as an expanded salpinx. The free parts of the two integumental lobes diverge as apical horns; there is therefore no micropyle. Eurystoma angulare gen. et sp. nov. possesses a similar nucellar apex but is usually quadrangular in section and has four apical lobes. The new genera are placed in the group Lagenostomales although the expanded salpinx is a character new to that group.

A review of the sponge‑dwelling snapping shrimp from Carrie Bow Cay, Belize, with description of Zuzalpheus, new genus, and six new species (Crustacea: Decapoda: Alpheidae)

Zootaxa ◽  
2007 ◽  
Vol 1602 (1) ◽  
pp. 1-89 ◽  
Author(s):  
RUBÉN RÍOS ◽  
J. EMMETT DUFFY
Keyword(s):  
New Species ◽  
New Genus ◽  
Species Group ◽  
Identification Key ◽  
Western Atlantic ◽  
Snapping Shrimp ◽  
New Material ◽  
Host Associations

We review the taxonomy of sponge-dwelling shrimp in the “Gambarelloides species group” within the genus Synalpheus Bate 1888, an informal but widely recognized group that is largely endemic to the western Atlantic and contains the majority of Synalpheus species in that region. The validity of most species described from the western Atlantic is reevaluated based on extensive new material from Carrie Bow Cay, Belize, and on examination of types of most described species. Twenty-eight species, including all those historically considered as part of the Gambarelloides group, are herein removed from Synalpheus and transferred to Zuzalpheus, n. gen., which is diagnosed by two synapomorphies: the dense brush of curved setae on the minor first pereopod, and the mesial lamellae on the coxae of the 3 rd pereopods. Six new species are described (Zuzalpheus dardeaui, Z. elizabethae, Z. idios, Z. kensleyi, Z. ul, Z. yano) and Z. osburni (Schmitt 1933) n. comb. is removed from synonymy with Synalpheus goodei. An identification key to all 34 species of West Atlantic Zuzalpheus is presented, as are known host associations, and color plates of most species.

Crete (Prehistoric)

2013 ◽  
Vol 59 ◽  
pp. 56-67
Author(s):  
John Bennet
Keyword(s):  
The Past ◽  
New Information ◽  
Archaeological Work ◽  
New Material ◽  
Individual Contributions ◽  
The University

Publications of fieldwork continue to appear slowly, but the latest volume of ADelt for Crete, covering the years 2001–2004, appeared in print in summer 2012 (ADelt 56–59 [2001–2004] B5). Inevitably, given the years covered, some of the activity summarized in this volume has already been noted in AG and brief notices of some appears in the decadal summary of the activities of all the prehistoric and Classical ephorias (www.yppo.gr/0/anaskafes; AR 58 [2011–2012] 58). Emphasis here is on those activities not already noted in AG or those where significant new information appears in the new volume of ADelt. The second meeting on Archaeological Work on Crete (AWiC2), alluded to last year (AR 58 [2011–2012] 58), has been published and can be read online through the University of Crete's Library (http://elocus.lib.uoc.gr/dlib/d/0/5/metadata-dlib-1368695830-557833-31681.tkl#). A third meeting is scheduled for December 2013 and will hopefully be made accessible with equally commendable promptness. The proceedings of the Tenth International Cretological Congress held in Chania in 2006 (see AR 53 [2006–2007] 96) are still to appear in print, although e-offprints of individual contributions continue to circulate. New material in this year's entry is therefore drawn primarily from ADelt 56–59 (2001–2004) B5 and AWiC2.The past year has seen a number of significant publications on prehistoric Crete, including the proceedings of several conferences. The publication by the BSA of Intermezzo: Intermediacy and Regeneration in Middle Minoan III Palatial Crete (Macdonald and Knappett [2013]), containing papers presented at a workshop held in 2008, complements volumes noted last year (AR 58 [2011–2012] 58) on Late Minoan IB ceramics (Brogan and Hallager [2011]) and on the Prepalatial and Protopalatial periods (Early Minoan to Middle Minoan II) (Schoep et al. [2011]).

A new haplolepid fauna (Osteichthyes: Actinopterygii) from the Lower Coal Measures of Scotland: Westphalian A; Langsettian, Carbonicola communis chronozone (Bashkirian)

2014 ◽  
Vol 105 (3) ◽  
pp. 207-225 ◽  
Author(s):  
Francis M. Elliott
Keyword(s):  
New Genus ◽  
Strong Indication ◽  
High Concentration ◽  
Comprehensive Description ◽  
The Family ◽  
Generic Position ◽  
New Material ◽  
Coal Measures ◽  
Dermal Bones ◽  
Brackish Environment

ABSTRACTSeven new species and one new genus of the family Haplolepidae (Actinopterygii: Palaeonisciformes) are described from new material obtained from the Drumgray coal shales, North Lanarkshire: Westphalian A (Bashkirian): Protohaplolepis isabellae; Protohaplolepis limnades; Protohaplolepis traquairi; Parahaplolepis alexandrae; Parahaplolepis elenae; Pyritocephalus youngii and Millerolepis eleionomae. The discovery of these new taxa increases the number of haplolepid species found in Europe to 16, thus producing a faunal count more than comparable to that of North America. This high concentration of haplolepid remains in limnic deposits is also a strong indication that these fish were not only adapted to a coastal paralic basin, but also well-adapted to a freshwater brackish environment. A comprehensive description of the skull roof morphology, including a short description of some of the larger dermal bones, is given of seven new haplolepid species obtained from the coal shale tips at Wester Bracco and Shotts in North Lanarkshire. In consequence, a revised table of the stratigraphical distribution of the Haplolepidae in Europe is provided. Furthermore, the new genus Millerolepis is assigned to the subfamily Parahaplolepinae and the generic position of the problematic Haplolepis attheyi from Newsham, Northumberland is discussed, with the taxonomic position of Protohaplolepis proposed.

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