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Four specimens ofStereomastiswere caught by beam-trawl on 07 August 2011 at a depth of 1000 m in the western deep basin, around the submarine thermal vent site, along the North Anatolian Earthquake Fault, in the Sea of Marmara. These specimens appeared to belong to an as yet undescribed species. As a result,Stereomastis artuzisp. nov. is described in this study as a new species in the family Polychelidae (Decapoda, Polychelida; also alternatively classified under Decapoda, Palinura, Eryonoidea).

Alburnus tarichi is the only vertebrate species that can survive in Lake Van, the largest soda lake on Earth, which is characterized by extremely high pH and salinity. The circular mitogenomes of A. tarichi was 16,602 base pairs in size, containing 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes, and 2 major non-coding control regions (D-Loop and O(L)). Congurence was observed between the Alburnus mtDNAs in terms of genome organization, base composition, gene arrangement, and tRNA structure. Mitogenome sequences may be useful for conservation efforts of this endangered species.

The ontogeny of appendages of Heterocypris salina (Brady, 1868) Ostracoda (Crustacea)Abstract The post-embryonic development of the appendages of the Cyprididae ostracod Heterocypris salina (Brady, 1868) are described in detail and compared with those of other podocope species documented in previous studies. Generally, the appearence of limbs during onotgeny of H. salina is similar to that of other species, but small differences in limb morphologies were identified between H. salina and other Cyprididae species, including other Heterocypris species. Some features appear either earlier or later in the development of H. salina compared with other species, even species of the same genus. These features may be useful characters for phylogenetic analyses at the genus and family levels.