https://www.selleckchem.com/products/sn-001.html The species of Syspira Simon from Hispaniola are revised and detailed documentation is provided for all known species from this island. Four new species (Syspira alayoni sp. n., S. armasi sp. n., S. barbacoa sp. n., and S. bryantae sp. n.), and the unknown male of Syspira agujas Brescovit, Sánchez-Ruiz Bonaldo are described. New distribution records were found for three known species (S. agujas, S. cimitarra Brescovit, Sánchez-Ruiz Bonaldo and S. medialuna Brescovit, Sánchez-Ruiz Bonaldo). The Hispaniolan endemic species Teminius monticola (Bryant, 1948) is transferred to Syspira based on the revision of its holotype. A key for Hispaniola Syspira species is provided. These species can be separated into two distinct groups based on features of the male palpal morphology and female genitalia the cimitarra group including S. cimitarra, S. jimmyi Brescovit, Sánchez-Ruiz Bonaldo, S. alayoni and S. barbacoa sp. n., and the agujas group including S. agujas, S. medialuna, S. monticola comb. n., S. armasi sp. n. and S. bryantae sp. n.We describe a new species of polyclad flatworm, Pericelis flavomarginata sp. nov., from the intertidal and subtidal zones along localities on the Pacific coast of Japan. Pericelis flavomarginata sp. nov. is characterized by i) the dorsal surface of the body fringed by a lemon-yellow line except for the tip of tentacles, with a narrow brown midline running from the anterior edge of the body to the posterior end of the pharynx, ii) the pair of marginal tentacles with the tips extending and tapering, and iii) the presence of a common gonopore. Our molecular phylogenetic analysis revealed that selected Pericelis species were divided into two clades, each of which may be agreed with a characteristic dorsal color pattern. Additionally, we report an observation on the feeding behavior of P. flavomarginata sp. nov. on the polychaete Iphione muricata (Savigny in Lamarck, 1818).A new species of Limnonectes