Download PDF as one large file - AToL Decapoda

1.
2.(1)
Genus Scyllarides Gill, 1898
Key to species
| Adapted from Lyons, 1970J
Family Scyllaridae 317
Gastric, cardiac, and branchial regions of carapace elevated, distinct; pregastric and
gastric teeth prominent in profile; second through fourth abdominal somites with
median, node-like carina 5. nodifer
Gastric, cardiac, and branchial regions of carapace low, not strongly defined;
pregastric and gastric teeth not obvious in profile; second through fourth abdominal
somites low, rounded, without distinct carina S. aequinoctialis
Genus Scyllarus Fabricius, 1775
Key to species
[Adapted from Lyons, 1970]
Gastric and all lateral prominences on carapace sharp; second segment of antennular
peduncle cylindrical; pleura of fourth abdominal somite sharply rectangular or acute
laterally S. depressus
Prominences on carapace blunt; second segment of antennular peduncle flattened
superiorly; pleura of fourth abdominal somite rounded laterally 2
Pregastric tooth of carapace nearly always bilobed, incised; first to fourth
abdominal somites with deep, narrow median notch in posterior margin
..S. americanus
Pregastric tooth of carapace rounded, entire; first to fourth abdominal somites with
very shallow, broad median notch in posterior margin S. chacei