A new species of the oribatid mite family Mochlozetidae from Ecuador, Unguizetes acutirostris sp. n., is described. It is similar to Unguizetes incertus (Balogh and Mahunka, 1969) and Unguizetes similis Mahunka, 1998 in having a pointed rostrum, but differs from both by the absence of a translamella, different morphology of the lamellar cusps, and spindle-form sensilli. An identification key to...

The freshwater shrimp species Caridina cucphuongensis (family Atyidae) was poorly described by Dang (1980). Moreover, the taxonomic status of this is hard to verify as types have been lost. This study provides a redescription and designation neotype specimen. Dang, 1980 characterized short rostrum with large teeth on dorsal margin, long stylocerite, subrectangular endopod male first pleopod, ap...

The ultrastructural morphology of the ventral region of the head (rostrum and buccula) and proesternum (stridulatory sulcus) of nymphs from the 1st to 5th instars of Triatoma guazu Lent & Wygodzinsky, 1979 and Triatoma jurbergi Carcavallo, Galvão & Lent, 1998 was described. Morphological differences between the two species and of the five nymphal stages development of each species were observed...

in this paper age determination and morphological characteristics of blacktip catfish, plicofollis dussumieri, from oman sea were evaluated. a total of 132 fish specimens were collected from fishing trawlers or landings from march 2011 to july 2012, with minimum and maximum of 245 mm, 195 g; and 767 mm, 5801 g, respectively. maximum life span was 12 years for the length range of 245 – 767 mm fl...

Geographic variations in size and proportions of blue whales (Balaenoptera musculus) were investigated using length data acquired from whaling records aerial photogrammetric surveys. Results showed that found the eastern Pacific off Central North America are significantly shorter (by approximately 2m) than at higher latitudes Pacific. support occurrence a morphologically distinct (ENP) whale po...

In 1974, I summarized the osteological and paleontological knowledge of billfishes and suggested some areas of research to aid future paleontological studies (Fierstine 1974). My suggestions included: (l) a comparative osteo­ logical study, especially of the rostrum, in order to obtain more accurate identifications of fos­ silized material; (2) a functional study of the feeding mechanism, in or...

In this study the cross-sectional area (in n = 14 female controls, 15 male controls, 11 female patients with schizophrenia, 15 male patients with schizophrenia) and fibre composition (in n = 11 female controls, 10 male controls, 10 female patients with schizophrenia, 10 male patients with schizophrenia) of the corpus callosum in post-mortem control and schizophrenic brains was examined. A gende...

”Thinohyus” osmonti was based on a nearly complete skull and jaws (UCMP 393) found in the upper John Day beds (upper Oligocene) of Oregon, and named by W.J. Sinclair in 1905. Since its discovery, it has been transferred from one primitive peccary genus to another (Thinohyus, Bothrolabis, Perchoerus), without a careful examination of the excellent fossils. It is not referable to Thinohyus from t...

Abstract Recent phylogenetic studies amended the taxonomy of three-toed jerboas (subfamily Dipodinae), including raising subspecies to full species. Here, we use geometric morphometrics compare scaled-shape differences in dipodine crania while considering their revised taxonomy. We sampled Dipus deasyi, D. sagitta halli, s. sowerbyi, Jaculus blanfordi blanfordi, J. hirtipes, jaculus, loftusi, o...