Moolapheonoides acutifalcatus Kobayashi and Ishimaru, 2005
publication ID |
https://doi.org/ 10.12651/JSR.2016.5.3.498 |
persistent identifier |
https://treatment.plazi.org/id/740E8780-7E7E-FFB6-5F1D-F9ADFBD8A6DD |
treatment provided by |
Felipe |
scientific name |
Moolapheonoides acutifalcatus Kobayashi and Ishimaru |
status |
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2. Moolapheonoides acutifalcatus Kobayashi and Ishimaru View in CoL , 2005 ǧêėẚêŔqăNjẹ (ṳAE) ( Fig. 2 View Fig ) Moolapheonoides acutifalcatus Kobayashi and Ishimaru, 2005: 171 , figs. 1-3.
Material examined. 1 female, (NIBRIV0000325972), Korea, Ulreungdo Is., Tonggumi , 20 May 2015, by light trap, collected by YH Kim and JH Heo.
Diagnosis. Body rounded, small sized, about 4.8 mm. Eye red, rounded, medium sized. Pereonites 35 broad, deep, swollen in dorsal view. Coxae 1, 2 small, hidden by coxa 3. Coxae 3, 4 enlarged. Pleonites much narrow er than pereonites. Mandibular palp triarticulate. Antenna 1 short, stout, subequal to head and pereonite 1 combined. Antenna 2 slender, slightly shorter than antenna 1. Gnathopod 1 subchelate; carpus shorter than propodus, posteroventral lobe produced prominently; propodus rectangular, palm short, slanted, defined by 2 pinnate spines; dactylus falcate, 0.6 × propodus, strongly overlapping palm, with 1 accessory tooth and row of small spines. Gnathopod 2, propodus subrectangular, gradually widening distally, shorter than carpus, lacking posterior setae, palm concave, defined by 2 spines, palmar corner blunt; dactylus fitting palm, curved, with accessory tooth and row of 5 spines. Pereopod 5, basis slender, linear; ischium shorter than merus. Pereopods 6, 7, basis expanded posteriorly. Urosomite 1 dorsally keeled and truncate, elongate, subequal to pereonite 7. Uropods 13 slender, peduncles and rami medially pectinate. Telson subtriangular, entire, longer than wide.
Distribution. Japan, Korea.
Remarks. Presently, the genus Moolapheonoides contains 8 species worldwide ( WoRMS, 2016). Among them, M. acutifalcatus is closely similar to M. kadee Barnard, 1974 , but distinguished from the latter in having short accessory flagellum, strongly curved dactylus on gnathopod 2, and truncate dorsal keel of urosomite 1. Our male specimen is accorded with Kobayashi and Ishimaru (2005) ’s original description, except palmar corner of gnathopod 2 blunt. In this paper the genus Moolapheonoides is reported from Korea for the first time.
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