Keys for Genus Gammarus
Eyes present
Accessory flagellum on antenna 1 present
Urosome I and II without dorsal tubercles
Basipodite of peraeopod V same width as peraeopod IV (the basis of the last two legs).
Dorsal surface of urosome segments armed with a group of spines.
Uropod III: inner ramus 40-100 % of the length of the outer ramus
THE WEIHERBACH BENTHOS REPORT
| Genus Gammarus |
Mostly very small specimens, this was one of the largest I discovered, yet well below 1 cm. in length
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