Three new species of pennatulacean octocorals with the ability to attach to rocky substrata (Cnidaria: Anthozoa: Pennatulacea)

Zootaxa ◽  
2011 ◽  
Vol 3001 (1) ◽  
pp. 33 ◽  
Author(s):  
GARY C. WILLIAMS ◽  
PHILIP ALDERSLADE

All sea pens have been thought to anchor in soft sediment using a basal, sausage-shaped, muscular peduncle. Based on underwater images and examination of specimens, we report an adaptation of the proximal portion of the peduncle for attachment to solid surfaces. We document four species with this adaptation, three new, Anthoptilum lithophilum sp. nov. (California, 669–700 m), A. gowlettholmesae sp. nov. (Tasmania, 729–1803 m), and Calibelemnon francei sp. nov. (the Bahamas, 1969 m), and one known, A. decipiens Thomson & Henderson, 1906 (Sri Lanka, 925 m). The peduncle of a colony with this adaptation is greatly expanded by an outgrowth of the coenenchyme that forms a sucker-like structure, beneath which a conical mass of tough tissue surrounds the proximal end of the internal axis. We infer this structure affects suction, increasing or decreasing the strength of adhesion to the substratum, and discuss the systematics and functional morphology of this new ecological phenomenon—pennatulaceans fastened to hard substrata. We alter the definition of the genus Anthoptilum to accommodate this morphology, reporting on specimens of the type species, A. grandiflorum; compare the two sea pen families—Anthoptilidae and Scleroptilidae— and the two genera; and present a key to the known rock-inhabiting species.

Zootaxa ◽  
2013 ◽  
Vol 3619 (3) ◽  
pp. 275-314 ◽  
Author(s):  
FERNANDA F. CAVALCANTI ◽  
HANS TORE RAPP ◽  
MICHELLE KLAUTAU

Sponges of the genus Leucascus are frequently recognised as possessing anastomosed tubes with choanocytes, and cortical and atrial membranes with pinacocytes. In the last years, five species of other genera were transferred to Leucascus, and several other species were suggested but not formally included in this genus. In the present work, all these species accepted or suggested as Leucascus were revised. According to our results, Leucascus is now composed of nine species: L. clavatus, L. leptoraphis comb. nov., L. lobatus, L. neocaledonicus, L. protogenes comb. nov., L. roseus, L. simplex (type species), L. albus sp. nov., and L. flavus sp. nov. The presence of spines in the apical actine of the tetractines had never been observed in Leucascus, but it was found in all species with tetractines in their skeletons. Some species were transferred from Leucascus to the genus Ascoleucetta, which is revalidated here based on important differences in the cortex. Modifications are also proposed in the definition of both genera. Based on our results, the family Leucascidae is now composed of Ascaltis, Leucascus and Ascoleucetta.


Zootaxa ◽  
2009 ◽  
Vol 2115 (1) ◽  
pp. 1-20 ◽  
Author(s):  
DANIELE POLOTOW ◽  
ANTONIO D. BRESCOVIT

The new ctenid genus Ohvida is proposed to include eight species: Ohvida fulvorufa (Franganillo, 1931) comb. nov. (type species) (= Celaetycheus cabriolatus Franganillo, 1930 syn. nov.; = C. cabriolatus pardosiformis Franganillo, 1930 syn. nov.; = C. fulvorufus afoliatus Franganillo, 1931 syn. nov.), O. isolata (Bryant, 1940) comb. nov., O. vernalis (Bryant, 1940) comb. nov., O. brevitarsus (Bryant, 1940) comb. nov., O. coxanus (Bryant, 1940), comb. nov., and three new species, O. turquino sp. nov. (all species from Cuba), and O. andros sp. nov. and O. bimini sp. nov. (both species from The Bahamas). Species of Ohvida differ from all other ctenid spiders by the presence of a retrodorsal projection on the cymbium of the male pedipalp and by a basal position of the lateral spurs on the female epigyne. The genus Celaetycheus Simon, 1897 is reviewed to only include its type species, C. flavostriatus Simon, 1897 from Brazil. We propose the following synonyms and new combinations: Ctenus ottleyi (Petrunkevitch, 1930) (= Celaetycheus strenuus Bryant, 1942 syn. nov. and C. modestus Bryant, 1942 syn. nov.); Ctenus delesserti (Caporiacco, 1947) comb. nov., and Leptoctenus paradoxus (F.O. P.-Cambridge, 1900) comb. nov. Celaetycheus modestus Bryant, 1942 is considered incertae sedis.


2011 ◽  
Vol 20 (1) ◽  
pp. 161-173
Author(s):  
A.P. Kassatkina

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.


Zootaxa ◽  
2013 ◽  
Vol 3619 (1) ◽  
pp. 79-100 ◽  
Author(s):  
C. A.M. REID ◽  
M. BEATSON

Three new species of Chrysomelidae with extraordinary extensions of the male mandibles are described: Scaphodius drehu sp. nov. and S. ferox sp. nov. (Cryptocephalinae), from New Caledonia, and Chaloenus gajah sp. nov. (Galerucinae), from Borneo. Designation of the type species of Chaloenus Westwood, 1861, is clarified. Synonymy of Scaphodius Chapuis, 1874, with Nyetra Baly, 1877, is supported. Four species of Ditropidus Erichson, 1842, described from New Caledonia, but hitherto regarded as nomina nuda, are shown to be available and are placed in Scaphodius: S. aeneus (Fauvel, 1907), comb. nov., S. nitidus (Fauvel, 1907) comb. nov., S. striolatus (Fauvel, 1907) comb. nov., S. sulcatus (Fauvel, 1907) comb. nov. Ditropidus opacicollis Fauvel, 1907, is also transferred to Scaphodius, as S. opacicollis (Fauvel) comb. nov. The genus Ditropidus does not occur onNew Caledonia. Male mandible enlargment in the Chrysomelidae is reviewed: it is common in Cryptocephalinae, but otherwise restricted to a few species of Chrysomelinae, Eumolpinae and Galerucinae. Possible reasons for its distribution in the Chrysomelidae are discussed.


Zootaxa ◽  
2021 ◽  
Vol 4964 (2) ◽  
pp. 345-362
Author(s):  
XIANG-YI LU ◽  
WEI-AN DENG

The genus Concavetettix Deng, gen. nov. (type species: Concavetettix yunnanensis Deng, sp. nov.) is described from Daweishan, Pingbian County, Yunnan Province, China. The genus Macromotettix Günther, 1939 is reviewed. Three new species of the genus, M. microptera Deng, sp. nov., M. zhengi Deng, sp. nov. and M. brachyptera Deng, sp. nov. are described with detailed illustrations of external morphology. One new name is proposed: Macromotettix napoensis Deng, nom. nov.. Additionally, an updated key to species of the genus Macromotettix is given. 


Zootaxa ◽  
2013 ◽  
Vol 3616 (1) ◽  
pp. 1-21 ◽  
Author(s):  
C. A. VIRAKTAMATH ◽  
ANA CLARA GONÇALVES

Studies on the Agalliini leafhoppers collected from the Terrestrial Arthropods of Madagascar inventory project of the Cal-ifornia Academy of Sciences, resulted in the discovery of one new genus Agallidwipa gen. nov. (type-species: A. biramosa sp. nov.) with three new species, A. biramosa sp. nov., A. bispinosa sp. nov. and A. webbi sp. nov. and three new species of the genus Igerna Kirkaldy, I. delta sp. nov., I. flavocosta sp. nov. and I. malagasica sp. nov. Two new combinations proposed are Agallidwipa pauliana (Evans) comb. nov. (from genus Agalliana Oman) and Igerna neosa (Webb) comb. nov. (from genus Stonasla White), a species previously recorded from Aldabra Islands. A previous record of Igerna bi-maculicollis (Stål) from Madagascar is shown most likely to be a case of misidentification. All the taxa are described and illustrated. Keys to species of Agalliini from Madagascar are included along with notes on the distinction between Agal-liana and Agallidwipa.


1981 ◽  
Vol 12 (3) ◽  
pp. 339-356 ◽  
Author(s):  
N. Møller Andersen

AbstractAngilovelia n.gen. is described with Velia y-alba Paiva, 1918, from Burma as type-species and only included species. It has stridulatory devices similar to those found in species of the Neotropical genus Stridulivelia Hungerford. Three new species of Angilia Stål subgenus Adriennella Poisson are described, A. orientalis n.sp. (Thailand, Hong Kong), A. bispinosa n.sp. (Thailand), and A. trispinosa n.sp. (Malayan Peninsula?). The Palaearctic genus Velia Latreille reaches the border zone between this region and the Oriental region. V. (Plesiovelia) affinis Kolenati ssp. marussii Tamanini, described from Hindukush (Afghanistan, Pakistan), is here recorded from Kashmir (India) and the first species of the genus is described from China, V. (Haldwania) sinensis n.sp. A key is given to the genera and subgenera of Veliinae of the world.


2020 ◽  
Vol 6 ◽  
pp. 583-594 ◽  
Author(s):  
Yuri M. Marusik ◽  
Alexander A. Fomichev

A new genus, Platnickgen. n., with three new species, P. shablyaisp. n. (♂, type species), P. astanasp. n. (♀) and P. sangloksp. n. (♀), are described from Tajikistan. The male of the type species has a unique pair of longitudinal ventral postgastral scuta. Females have such scuta also, but they are much shorter. The new genus is placed in Liocranidae Simon, 1897. A discussion on the subfamilies of Liocranidae and comments on the family-group names are provided.


Zootaxa ◽  
2013 ◽  
Vol 3630 (2) ◽  
pp. 201-224 ◽  
Author(s):  
CHAO ZHANG ◽  
ADRIANO B. KURY ◽  
FENG ZHANG

The harvestman genus Bonea Roewer, 1914 and its type species B. sarasinorum Roewer, 1914 are redescribed based on the type material. In addition, two new species of Bonea from Hainan Island, China, are described and illustrated: B. zhui sp. nov. and B. tridigitata sp. nov. A new species of Lomanius Roewer, 1923 from Yunnan Province, China, is also described and illustrated: L. bulbosus sp. nov.. Keys to the 10 species of Bonea and the six species of Lomanius are provided. Paralomanius Goodnight & Goodnight, 1948 is revalidated from the synonymy of Lomanius, carrying as junior synonym Eulomanius Roewer, 1949, and containing two species from Micronesia (Paralomanius longipalpus Goodnight & Goodnight, 1948) and Philippines (Paralomanius mindanaoensis (Suzuki, 1977) new status). Bonea is transferred from the Ibaloniinae to Podoctinae. These are the first records of named species of Podoctidae from China.


Sign in / Sign up

Export Citation Format

Share Document