| 主要参考文献 | Poutiers, J.M., 1998 |
| 形态描述的性别 |
| 特殊器官 | |
| 不同的外表 | |
| 不同的颜色 | |
| 附注 |
| 显着的特徵 | |
| 侧面体型 | |
| 横切面 | |
| 头部背面描绘 | |
| 眼的类型 | |
| 口/吻尖的类型 | |
| 口的位置 | |
| 鉴别 | Shell rather thin but solid, strongly inflated, oval subquadrate in shape with rounded ventral margin, almost as high as long; slightly inequivalve, left valve overlapping the right valve on ventral and posterior margins. Cardinal area moderately large. About 34 radial ribs (32 to 36) at each valve; ribs stout and flat, larger than the interstices, smooth on both valves. Periostracum coarse and concentrically striated, easily detached, forming rows of foliations in the interstices of ribs. Internal margins with strong crenulations corresponding with the external radial ribs. No byssal gape. Colour: outside of shell white under the dark brown periostracum. Inner side bluish white. |
| 鉴定难易度 |
| 侧线 | 打断: No |
| 侧联机的鳞片 | |
| 侧联机鳞片数 | |
| 侧生系列的鳞片 | |
| 侧联机的鳞片列 | |
| 侧线下的鳞片列 | |
| 尾梗周围的鳞片 | |
| 触须 | |
| 鳃裂 (仅限于鲨鱼/ 鱼) | |
| 鳃耙 | |
| 在下肢上 | |
| 上枝鳃耙 | |
| 总数 | |
| 脊椎骨 | |
| 肛门前 | |
| 总数 |
| 属性 | |
| 鳍数 | |
| 离鳍号码 | 背鳍 |
| Ventral | |
| 棘总数 | |
| 软条总数 | |
| 脂鳍 |
| 属性 |
| 鳍数 | |
| 棘总数 | |
| 软条总数 |
| 胸鳍 | 属性 |
| 脊椎 | |
| 软条 | |
| 骨盘的 | 属性 |
| 位置 | |
| 脊椎 | |
| 软条 |