ZOOL. MED. MUS. LEIDEN, I. 



PL. VIII. 



-. r^T :■:-;■:■ \- 



10° 



&■■■: ' 



H 



Tesch del. 



9. M. erato. 9 a External orbital angle and anterior lateral tooth of 



the carapace. 9 b under border of the left orbit. 



10. M. quadratus. 10 a male cheliped. 



11. M. pacificus. 



