The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist Author Yolanda, Rofiza Biology Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Ketintang Campus, Surabaya 60231, East Java, Indonesia Author Lheknim, Vachira Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand & Department of Earth Science and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia & Marine Ecosystem Research Centre (EKOMAR), Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia Author Price, W. Wayne Department of Biology, University of Tampa, Tampa, Florida 33606, USA Author Hendrickx, Michel E. Laboratorio de Invertebrados Bentónicos, Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mazatlán Sinaloa, 82000, Mexico text Zootaxa 2023 2023-08-16 5330 3 413 429 http://dx.doi.org/10.11646/zootaxa.5330.3.5 journal article 10.11646/zootaxa.5330.3.5 1175-5326 8254853 436F2ABB-2A9A-4856-9602-ADAE580DC88F Lophogaster inermis Casanova, 1996 Record from Indonesia . Arafura Sea. Depth range: 179–180 m ( Casanova 1996 ). Remarks. This species is morphologically similar to L . typicus . However, L . inermis can be recognized by its apical antennal scale bearing a strong, straight spine with 2 serrate small spines on the distal part of the outer margin. The lateral margin of the telson is slightly narrowing from the middle to posterior parts and is armed with a few short setae; the apical plate bears 4 apical spines and the middle part is armed with 4 short spinules and 2 long bristles ( Casanova 1996 ).