Galacantha, A. Milne-Edwards, 1880

Published, First, 2007, Species of the genus Munidopsis Whiteaves, 1784 from the Indian and Pacific Oceans and reestablishment of the genus Galacantha A. Milne-Edwards, 1880 (Crustacea, Decapoda, Galatheidae), Zootaxa 1417, pp. 1-135 : 9

Key to species of the genus Galacantha

1. Carapace with a single prominent spine on anterior lateral margin .......................................................... 2

- Carapace with 2 prominent spines on anterior lateral margin ................................................................... 3

2. Carapace with 2 epigastric spines .......................................................................... G. valdiviae Balss, 1913

- Carapace without epigastric spines .................................................................................... G. quiquei n. sp.

3. Rostrum without spines at end of horizontal portion ................................................................................. 4

- Rostrum with 2 divergent or subparallel spines at end of horizontal portion ............................................ 6

4. Abdomen smooth on tergites, tuberculate on pleura. Scale-like ridges in transverse rows on posterior half of carapace .......................................................................................................... G. diomedeae Faxon, 1893

- Abdomen tuberculate on tergites and pleura. Tubercles in transverse rows on posterior half of carapace 5

5. Mesogastric spine with posterior margin clearly convex. Carapace lateral margin with first (anterolateral) spine more than 3 times longer than second (hepatic) spine ............... G. spinosa A. Milne-Edwards, 1880

- Mesogastric spine with posterior margin straight. Carapace lateral margin with first (anterolateral) spine less than 3 times length of second (hepatic) spine........................................................ G. subspinosa n. sp.

6. Rostrum with 2 divergent spines at end of horizontal portion, clearly discernible in dorsal view ............ 7

- Rostrum with 2 small subparallel spines, at end of horizontal portion, not discernible in dorsal view .... 8

7. Carapace covered with spines..................................................................... G. trachynotus Anderson, 1896

- Carapace covered with simple or scale-like tubercles ........................ G. rostrata A. Milne-Edwards, 1880

8. Abdominal tergite 4 with transverse groove between ridges interrupted medially. First spine (anterolateral) on anterolateral margin of carapace larger than second (hepatic) spine ............. G. subrostrata n. sp.

- Abdominal tergite 4 with transverse groove between ridges not interrupted medially. First spine (anterolateral) on anterolateral margin of carapace smaller than second (hepatic) spine ........................................ ............................................................................................................................. G. bellis Henderson, 1885