Main Ref. | Nakayama, N., T. Yamakawa, M. Takami and H. Endo, 2023 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Males with first premaxillary tooth modified into large stout canine, followed by 1-2 irregular rows of small conical teeth, becoming uniserial posteriorly, whereas in females, first canine only slightly enlarged, and other small teeth arranged in distinct two rows, except near posterior margin. In males, anterior two teeth of mandible modified into large stout canines, second larger, followed by one distinct row of small conical teeth; whereas in females, anterior two canines only slightly enlarged, other small teeth arranged in two irregular rows anteriorly, almost uniserial (Ref. 128434). posteriorly (Fig. 3G–H). These dimorphisms especially man- ifested in sexually mature individuals. |
Striking features | |
Body shape lateral | |
Cross section | oval |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
This species is distinguished from its its two congeners by the following characters: D spines 133-143 dorsal-fin (vs. 124-128 in E. koreanus and 116-125 in E. tanneri); A 109-116 (vs. 102-103 koreanus, 90-100 tanneri); total vertebrae 146-156 (vs. 141-143 koreanus, 132-143 tanneri ); and, pectoral-fin rays 5-6 (vs. 7 both congeners); further, it is unique in lacking prominent dark markings on the sides of the head and body, whereas E. koreanus and E. tanneri have a dark band posterior to the eye and a series of dark blotches midlaterally on the trunk and tail (Ref. 128434). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | |
Scale rows below lateral line | |
Scales around caudal peduncle | |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | 37 - 40 |
total | 146 - 156 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | 133 - 143 |
Soft-rays total | 7 - 12 |
Adipose fin |
Attributes |
Fins number | |
Spines total | |
Soft-rays total | 109 - 116 |
Pectoral | Attributes |
Spines | |
Soft-rays 5 - 6 | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays |