An in-depth study of the genera Paguristes Dana, 1851 and Pseudopaguristes McLaughlin, 2002 in Indonesian waters has resulted in refined hypotheses of some of the evolutionary trajectories within the Paguroidea. Not only has the observed reduction in pleurobranch and arthrobranch number in three species, Paguristes hians Henderson, 1888, P. kuekenthali De Man, 1902 and P. monoporus Morgan, 1987 required the transfer of these taxa to Pseudopaguristes, they, and two new species, have required an emendation of the genus itself. Additionally, the investigation has also revealed anintermediate evolutionary change that heretofore has gone unrecognized. In several, apparently less derived, representatives of Paguristes, the characteristic gill number of 13 pairs (ten of arthrobranchs and three pleurobranchs) has been reduced to 12, with the loss of the pleurobranch on the wall of fifth thoracic somite. Only one of these recognized species, Paguristes tuberculatus Whitelegge, 1900, occurs in Indonesian waters. The genus Stratiotes, Thomson, 1899, erected for Pagurus setosus Filhol, 1885, a junior synonym of Paguristes setosus (H. Milne Edwards, 1848), is reinstated because its type species has proved to have 12 pairs of gills. Three new species are included in Stratiotes: S. micheleae n. sp., S. breviantennatus n. sp., and S. ngochoae n. sp. The new species assigned to Pseudopaguristes are P. asper n. sp. and P. gracilis n. sp.

The identity of the tree-spider crab, Parasesarma leptosoma (Hilgendorf, 1869) (family Sesarmidae), which is believed to be widely distributed in the Indo-West Pacific, is reassessed and shown to be a species-complex with nine species, seven of which are here described as new. Parasesarma leptosoma sensu stricto is now restricted to South and East Africa; and P. limbense (Rathbun, 1914) from Sulawesi, which had been regarded as a junior synonym, is here recognized as a valid species. The following species are described as new: P. gecko n. sp. from Vanuatu, Fiji, Guam and Japan; P. macaco n. sp. from Taiwan and the Philippines; P. kui n. sp. from Taiwan; P. parvulum n. sp. from the Philippines; P. gracilipes n. sp. from Indonesian Papua; P. purpureum n. sp. from Malaysia; and P. tarantula n. sp. from Sulawesi, Indonesia. The nine species of the Parasesarma leptosoma species-complex can be separated by the different shapes of their carapaces, the form of the dactylar tubercles on the male chelipeds, proportions of their ambulatory legs and the structure of the male first gonopod.

Two new species and a new distributional record of the sesarmine crabs of the genus Perisesarma are recorded from a mangrove area in southwestern Irian Jaya, Indonesia. Perisesarma foresti sp. nov. and P. cricotus sp. nov. can be most easily separated from their congeners by the number, shape, and ornamentation of the cheliped dactylar tubercles. Perisesarma cricotus is also recorded from Ambon, eastern Indonesia. Perisesarma semperi (Bürger, 1894) is a rst record for Indonesia and marks a signi cant southerly range extension. RÉSUMÉDeux espèces nouvelles sont décrites et une nouvelle référence géographique des crabes Sesarminae Perisesarma est fournie à partir de spécimens récoltés sur la côte sud-occidentale de l'Irian Jaya, Indonésie. Perisesarma foresti sp. nov. et P. cricotus sp. nov. peuvent être différenciées de leurs congénères par le nombre, la forme et l'ornementation des tubercules du dactyle du chélipède. Perisesarma cricotus est aussi signalé d'Ambon, Indonésie orientale. Perisesarma semperi (Bürger, 1894) est trouvé pour la première fois en Indonésie, indiquant une extension signi cative de sa présence vers le sud.

The mangrove sesarmid crabs of the Parasesarma plicatum species-group are revised, and four distinct taxa are recognized: Parasesarma plicatum (Latreille, 1803), P. affine (De Haan, 1837), P. ungulatum (H. Milne Edwards, 1853), and P. dumacense (Rathbun, 1914). These four species are easily distinguished from congeners by the number of dactylar tubercles of the chelipeds, the shape of the male first gonopod and live coloration. Their distributions are also distinct, P. plicatum being found in the eastern Indian Ocean, P. affine in Japan, China, Taiwan, P. ungulatum throughout Southeast Asia, and P. dumacense in the Philippines.

Among the decapod crustaceans collected during the Biological Monitoring Program of the Environmental Department of Perseroan Terbatas Freeport Indonesia (PT. Freeport Indonesia) in the south coast of Papua, Indonesia (04º40'-05º05'S, 136º35'-137º20'E), four species of hermit crabs belonging to the genus Clibanarius were found in mangrove and estuarine areas.

A new genus, Pteropagurus, is proposed for two new species of hermit crabs that are described and illustrated herein. These species, Pteropagurus inermis n. sp. and P. spina n. sp. are unique in that their shelter of choice is empty pteropod mollusk shells. The taxon can be categorized as a deepwaters genus, with a bathymetric range of 285 to 700 meters. Although both species are presently known only from New Caledonia, it is quite possible that their occurrence in other areas has been overlooked because their unique habitat has been neither expected nor heretofore considered a resource for hermit crabs.

Penyakit Tidak Menular (PTM) adalah salah satu yang merupakan penyebab  kematian di dunia. Indonesia merupakan salah satu Negara yang menghadapi masalah baik penyakit menular ataupun Penyakit Tidak Menular (PTM). PTM ini biasanya muncul tanpa gejala serta tidak menunjukkan adanya tanda klinis tertentu, sehingga sebagian besar masyarakat tidak menyadari tentang adanya bahaya  penyakit tidak menular  tersebut.  Jika masyarakat tahu akan deteksi dini penyakit tidak menular ini, maka upaya pencegahan terjadinya penyakit ini akan segera dilakukan. Tujuan dilakukannya  pengabdian masyarakat ini  adalah  memberikan  pengetahuan tentang penyakit tidak menular serta melakukan pemeriksaan tekanan darah rutin, pemeriksaan gula darah, asam urat serta kolesterol untuk melakukan deteksi dini adanya penyakit tidak menular. Pengabdian kepada masyarakat ini menggunakan metode penyuluhan dan dilanjutkan dengan pemberian konsultasi bagi lansia yang membutuhkan. Pengabdian masyarakat ini dilakukan di Posyandu Lansia “Dharma Husada Insan Mandiri” Kelurahan Balowerti Kota Kediri dengan jumlah lansia yang datang yaitu sebanyak 50 lansia. Pelaksanaan pengabdian masyarakat mampu meningkatkan pengetahuan Lansia sehingga mereka memiliki motivasi untuk melakukan pencegahan penyakit tidak menular serta mengetahui hasil pengukuran tekanan darah, gula darah, asam urat dan pemeriksaan kolesterol yang bisa digunakan untuk mengurangi faktor resiko penyebab terjadinya penyakit tidak menular. Pada pemeriksaan kesehatan yang dilakukan didapatkan ada beberapa lansia yang mengalami peningkatan tekanan darah, ada yang mengalami kenaikan kadar gula darah, asam urat ataupun kolesterol.

Abstract. Setyadi G, Rahayu DL, Pribadi R, Hartati R, Wijayanti DP, Sugianto DN, Darmawan A. 2021. Crustacean and mollusk species diversity and abundance in the mangrove communities of Mimika District, Papua, Indonesia. Biodiversitas 22: 4146-4157. A mangrove crustacean and mollusk species diversity study was carried out in four mangrove estuaries in Mimika District, Papua, Indonesia. Two locations were selected on each estuary; for each location, samples of crustaceans and mollusks were collected from 5 m × 5 m plots, and mangrove trees were recorded on 10 m × 10 m plots at a distance of 10 m, 250 m and 500 m perpendicular to the riverbank. This study recorded a total of 41 species of crustaceans and 32 species of mollusks the latter comprising three species of bivalves and 29 gastropod species. The number of crab species found was among the highest compared to similar studies in the world. The average number of species collected from each 25 m2 plot was 7.6 ± 4.2 species for crustaceans, with an average abundance of 87 ± 3.5 individuals; for mollusks, it was 3.3 ± 3 species with an average abundance of 28 ± 48.4. Crustacean abundance and species composition were influenced by inundation frequency. There was a strong correlation between the crab Parasesarma cricotum and the association of Rhizophora apiculata and Bruguiera gymnorrhiza mangroves, and Clistocoeloma amamaparense and the association of B. gymnorrhiza, R. apiculata, and Bruguiera parviflora mangroves. For mollusks, correlations were found between Terebralia palustris and Ellobium aurisjudae and the association of R. apiculata and B. parviflora mangroves. The highest crustacean Shannon-Wiener diversity index was associated with Sonneratia alba and Avicennia marina mangroves, and the highest mollusk Shannon-Wiener diversity index was associated with R. apiculata and B. gymnorrhiza mangroves.