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Oocysts of this new Eimeria species are spheroidal to subspheroidal, 21.7 × 20.7 (20-23 × 19-23), length/width (L/W) ratio 1.05, with a highly refractile polar granule, but lacking a micropyle and oocyst residuum. Sporocysts are ovoidal, 10.6 × 8.0 (9-12 × 7-9), L/W ratio 1.3, with a small, Stieda body and a sporocyst residuum of diffuse granules. Of the infected opossums, 5/32 (16%) were infected with only one Eimeria sp., 6/32 (19%) with two, 15/32 (47%) with three, 5/32 (16%) with four and 1/32 (3%) with five Eimerians.Five new species of the leafhopper genus Limassolla Dlabola, Limassolla bicruralis, L. kunyica, L. uncata, L. nigropunctata, L. spinulata spp. nov., are described and illustrated and a key to separate males of those species is provided.The sharpshooter genus Balacha Melichar, 1926 has seven recognized species and is distributed in southern South America (Argentina, Brazil, Paraguay, and Uruguay). Here, two new Brazilian species of this genus are described and illustrated, one (B. ancora sp. nov.) from Serra do Caraça and Serra do Cipó (Minas Gerais State) and another (B. nigroflava sp. nov.) from Ponta Grossa (Paraná State) and Passo Fundo (Rio Grande do Sul State). Based on 67 morphological characters, we carried out a parsimony analysis to estimate the phylogenetic position of the two new species. Using implied weighting in TNT, a single topology within Balacha was obtained with k values that varied from 1.599 to 7.412. In this topology, the two new taxa appeared within the clade of black Balacha species. A biogeographical analysis (S-DIVA) suggested that the ancestral area of distribution of Balacha was the Atlantic Forest domain. Balacha species were so far known to have only Eryngium (Apiaceae) species as host plants. Here we report a new host plant for the genus B. ancora sp. nov. specimens were collected on Actinocephalus polyanthus (Eriocaulaceae). Balacha similis and B. rubripennis are newly recorded from Argentina and specimens of the latter have a very distinct color pattern from the typical Brazilian specimens. Finally, a key to species and maps showing the known distribution of the genus are given (several state records of species are also provided).Five species of decapod crustaceans, including Calliax nishiki sp. nov. (Axiidea, Eucalliacidae) and Carcinoplax longimana (de Haan), are described from the upper part of the Moeshima Silt Bed (latest Pleistocene to Holocene ca 13,000 to 8,000 cal BP). Ten decapods, including Laticallichirus grandis (Karasawa Goda) and Ebalia tuberculosa (A. Milne-Edwards) are described from the Moeshima Shell Bed (Holocene ca 8,000 to 2,000 cal BP). Calliax nishiki is abundant and Carcinoplax longimana is common in the decapod assemblage of Moeshima Silt Bed. The new species of Calliax seems to have dispersed around the deep marine setting with a reducing environment. The decapod assemblage of the Moeshima Shell Bed is characterized by a predominance of L. grandis. [https://www.selleckchem.com/products/SB590885.html SB590885 chemical structure] The present record suggests that L. grandis is abundant under sandy and gravelly bottoms mixed with shells of the lower sublittoral to subtidal zones during the Quaternary.A new species of gecko of the genus Hemidactylus (Squamata Gekkonidae) is described from São Nicolau Island, Cabo Verde Archipelago, and the Sal and Boavista island populations of Hemidactylus boavistensis (i.e., Hemidactylus boavistensis boavistensis comb. nov. and Hemidactylus boavistensis chevalieri comb. nov.) are recognized as subspecies. Hemidactylus nicolauensis sp. nov. is genetically distinct from H. bouvieri, to which it has previously been referred, and from all other closely related endemic Hemidactylus from Cabo Verde Islands in mitochondrial (12S cyt b) and nuclear (RAG2, MC1R) markers. It is characterized morphologically by its distinct colouration and a diagnostically different arrangement of digital lamellae. With the description of this new species, São Nicolau is now known to harbour three single-island endemic gecko species, and the documented reptile diversity in Cabo Verde is raised to 23 endemic species. As a result of our taxonomic changes, existing conservation regulations should be updated and the conservation status of these taxa should be re-evaluated.Seventeen chiton species of the genus Leptochiton are reported from Philippine waters. Of these, nine are reported from the Philippines for the first time, including three species new to science Leptochiton costatoacus n. sp., L. longigranum n. sp. and L. spiniferus n. sp. The majority of the Philippine leptochitons live mainly in the bathyal zone or deeper.Agassiz, L. (1862) Contributions to the natural history of the United States of America. Vol. 4. Little Brown, Boston, 380 pp.Aguirrezabalaga, F., Altuna, A., Borja, A., Feliu, J., GarcíaCarrascosa, A.M., Romero, A., San Vicente, C., Torres-Gómez-de-Cádiz, J.A., Uriz, M.J. Ibánez, M. (1984) Contribución al conocimiento de la fauna marina de la costa Vasca. Π. Lurralde, Investigación y espacio, 1984, pp. 83-133.Alder, J. (1856) A notice of some new genera and species of British hydroid zoophytes. Annals and Magazine of Natural History, Series 2, 18, 353-362. https//doi.org/10.1080/00222935608697652Allman, G.J. (1873) Interim report on the hydroids collected by L.F. de Pourtalès during the Gulf Stream exploration of United States coast survey. Bulletin of the Museum of Comparative Zoology at Harvard College, 3 (7), 185-186.Allman, G.J. (1874) Report on the Hydroida collected during the expeditions of H.M.S. 'Porcupine.' Transactions of the Zoological Society of London, 8, 469-481. https//doi.org/10.1111/j.1096-, 1-111.Stechow, E. (1913a) Neue Genera thecater Hydroiden aus der Familie der Lafoeiden und neue Species von Thecaten aus JapanTwo new species of soldier beetles (Coleoptera, Cantharidae) from the Priabonian deposits in Yantarny, Russia (Baltic amber) are described. Cantharis crisantha sp. nov. is characterized by its relatively small body size, laterally rounded prothorax, and simple claws with a small basal tooth. Of particular interest, this specimen has its aedeagus extruded-a feature described for the first time in a representative of the genus Cantharis found in amber, and something rarely seen in all known fossil species of the Cantharidae family. The second described species, Cantharis raeorum sp. nov., is characterized by a pronotum with straight sides and a transverse and concave part near the posterior margin. The species are compared with earlier reported fossil Cantharis.