查看更多>>摘要：Taxonomic status of the genus Alonopsis was clarified by the morphological study and cladistic analysis. Morphology of both valid species, A. elongata (Sars, 1861) and A. aureolata Doolitle, 1912, was investigated. So far, generic status of the groupwas questioned, some authors treated Alonopsis as a part of the genus Acroperus. Our data confirm independent status of Alonopsis, and emended diagnosis of the genus is provided. According to our analysis, Acroperus and Alonopsis are the sister-groups ofa monophyletic clade, each having their own autapomorphies. Both genera belong to a well-defined group of Aloninae (named here as Arthrocauda-group), which is characterized by the presence of well-developed abdominal joint and elongated narrow postabdomen. There are two parallel clades within the group, one formed by Acroperus and Alonopsis, other by Parakozhowia, Kozhowia and Camptocercus. According to our analysis, these branches have numerous homoplasies, the most significant of them is the independent appearance of the head keel in two most successful genera, Acroperus and Camptocercus.
查看更多>>摘要：Amongst the about a dozen halacarid species from a shore of Mauritius, the genus Halacarus was represented by a single species, Halacarus socius Bartsch, 1992. The species was once described on the basis of females collected on Moorea, Society Islands, Pacific Ocean, now a description of the male is added and that of the female supplemented. Halacarus socius seems to be wide-spread in the Indo-Pacific region. Halacarus tritoni Otto is a synonym. Halacarus socius is a member of the H. actenos group, agroup characterized by the combination: posterior dorsal plate absent in both females and males, ocular plates small or lacking, with or without a cornea, apodemes of anterior and posterior epimeral plates long, female genitoanal plate with rather uniform cerotegumental cover and two pairs of peri-genital setae adjacent to the genital opening, one pair (rarely two pairs) of perigenital setae anterior to the genitoanal plate, one or two bipectinate setae on tibia II, no tines on shaft of claws but paired claws often with tines on the accessory process. Species attributed to this group are diagnosed.
DIANA L. SALCEDO OROPEZAGUILLERMO SAN MARTINVIVIANNE SOLIS-WEISS
12页
查看更多>>摘要：As part of a project dealing with soft bottom polychaetes from the western coasts of Acapulco Bay, Southern Mexican Pacific, 1050 specimens of the family Syllidae were collected and identified. Among them, 72 belong to two new species that are hereindescribed. Plakosyllis curvispina n. sp. (31 specimens) is the fourth known species of the genus, which is newly recorded for the Mexican Pacific. It is characterized by having compound falcigers with elongated blades, very long, fine and curved spines,and three antennae in ventral position, partially or completely covered by the prostomium. Trypanosyllis microdenticulata n. sp. (41 specimens) is characterized by having bidentate chaetae, two pairs of eyes, the anterior one in ventral position and theposterior one in dorsal position and a very small trepan with transparent teeth.
查看更多>>摘要：A new species of ectoparasitic mite, Hemipteroseius vikrami n. sp. (Mesostigmata: Otopheidomenidae), collected on Dysdercus koenigii (Fabricius) in New Delhi and D. cingulatus (Fabricius) in Varanasi, India is described. It is distinguished from otherspecies of the genus in having the dorsal shield divided, podonotal shield with nine pairs and opisthonotal shield with four pairs of setae; setae j6, s6 and Z5 with bulbose/spatulate tips; tritosternum with two short slightly barbed lacinae; venter with four pairs of sternal setae, one pair on the sternal shield and three pairs placed posterolaterally; anus terminal; one pair of preanal setae; movable digit of chelicera with two teeth distally; macrosetae on genu I-IV and femur I—II with bulbose/spatulate tip. A list of species of Otopheidomenidae with details of distribution and hosts, key to species of Hemipteroseius and comparison of morphological characters of species are also provided.
RENATA MAGALHAES PIRANITIAGO LEITE PEZZUTIANA PAULA MOTTARENATO NEVES FEIO...
5页
查看更多>>摘要：Frog species from the genus Hylodes Fitzinger occur mainly in southeastern Brazil (Frost, 2010). Of the 24 species of genus only 13 species have their tadpoles described (see Discussion below). Hylodes babax was known from the type-locality at Caparaomountain range (Heyer, 1982), and has recently been recorded from two new localities: Parque Estadual da Serra do Brigadeiro, in the Mantiqueira mountain range, and Floresta Estadual do Uaimii, in the southern Espinhaco mountain range (Pirani et al. 2010).Herein, we describe the tadpole of H babax collected in a permanent stream in Floresta Estadual do Uaimii (20°29'66" S 43°57'47" W, 1021 ma. s. 1.), Municipality of Ouro Preto, Minas Gerais, in the Quadrilatero Ferrifero mountain region, southernmost edge of the Serra do Espinhaco Range, southeastern Brazil. Tadpoles were collected in a stream where only this Hylodes species was registered during a one year monitoring study. Also, several adults of H. babax, including some calling males, were observedalong the same stream where the tadpoles were collected (calls of one male were recorded, which helped to confirm the species identity). We killed tadpoles in 5% lidocaine solution; we prepared and preserved them in 10% formalin. Voucher tadpoles are inthe herpetological collection of Museu de Zoologia Joao Moojen, Universidade Federal de Vigosa (MZUFV), Vigosa, state of Minas Gerais, Brazil. External morphology descriptions, proportions and measurements were based on fourteen tadpoles in stage 25 (Gosner 1960) (MZUFV lot 172).
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