Ischnomesus sp. MoV 6876  

Pereonites 4-7 dorsally with clear suture lines between pereonites 4-7, pleonite 1 and ploetelson. Pereonite 1 with pair of small spines on anterolateral corners, anterolateral corners of other pereonites without spines. Body surface smooth, not ornamented. Pleon oval, elongate, not ornamented. Uropod with 2 articles.