Species . | Habitat . | Gill 6 . | Gill 7 . | Gill 8 . | N . | Group . |
---|---|---|---|---|---|---|
Portunidae | ||||||
Scylla paramamosain | M | C | C | C | 4 | 1† |
Ocypodidae | ||||||
Macrophthalmus banzai | IT | C | C | C | 3 | 1† |
Macrophthalmus abbreviatus | IT | C | C | C | 3 | 1† |
Uca lactea | IT/BI | C | C | - | 4 | 1† |
Uca formosensis | BI/T | A | A | - | 4 | 2 |
Ocypode stimpsoni | T | A | A | - | 2 | 2 |
Grapsidae | ||||||
Chasmagnathus convexus | BI/T | A | A | A | 4 | 2 |
Helice formosensis | BI/T | A | A | A | 4 | 2 |
Eriocheir sinensis | FW | A | A | A | 4 | 2 |
Hemigrapsus sanguineus | IT/BI | A<C | C | × | 4 | 3 |
Hemigrapsus penicillatus | IT/BI | C | A>C | × | 4 | 3 |
Perisesarma bidens | IT/BI | A | C | × | 2 | 3 |
Chiromantes dehaani | BI/T | C | A | A | 3 | 3 |
Species . | Habitat . | Gill 6 . | Gill 7 . | Gill 8 . | N . | Group . |
---|---|---|---|---|---|---|
Portunidae | ||||||
Scylla paramamosain | M | C | C | C | 4 | 1† |
Ocypodidae | ||||||
Macrophthalmus banzai | IT | C | C | C | 3 | 1† |
Macrophthalmus abbreviatus | IT | C | C | C | 3 | 1† |
Uca lactea | IT/BI | C | C | - | 4 | 1† |
Uca formosensis | BI/T | A | A | - | 4 | 2 |
Ocypode stimpsoni | T | A | A | - | 2 | 2 |
Grapsidae | ||||||
Chasmagnathus convexus | BI/T | A | A | A | 4 | 2 |
Helice formosensis | BI/T | A | A | A | 4 | 2 |
Eriocheir sinensis | FW | A | A | A | 4 | 2 |
Hemigrapsus sanguineus | IT/BI | A<C | C | × | 4 | 3 |
Hemigrapsus penicillatus | IT/BI | C | A>C | × | 4 | 3 |
Perisesarma bidens | IT/BI | A | C | × | 2 | 3 |
Chiromantes dehaani | BI/T | C | A | A | 3 | 3 |
M, euryhaline marine crab; IT, intertidal crab; BI, bimodal crab; T,terrestrial crab; FW, freshwater crab.
In these 13 crabs, gills 6-8 were all posterior gills. C, the V-H+-ATPase was located in the cytoplasmic region; A, the V-H+-ATPase was located mainly in the apical region; -, this gill does not exist in this species; ×, the gill was not tested; A<C, most epithelial cells had the cytoplasmic V-H+-ATPase; A>C, most epithelial cells had the apical V-H+-ATPase.
The crabs were separated into three groups according to the localization of V-H+-ATPase. Group 1 had cytoplasmic V-H+-ATPase in all posterior gills. Group 2 had apical V-H+-ATPase in all posterior gills. Group 3 had non-uniform distribution of V-H+-ATPase either among all posterior gills or in a single gill lamella.