ABSTRACT: As a result of detailed comparative-morphological studies of Cyprideis pedashenkoi (Daday 1909), considered by many authors to be synonymous with Cyprideis torosa (Jones 1850), it is now possible to demonstrate that it is a separate species endemic to Lake Issyk-Kul. Morphologically it is no less variable than C. torosa, can be consistently distinguished from that species by its double (vs. V-shaped) frontal muscle scar, the pronounced fossa-mural nature of the surface sculpture, with punctate sculpture grouped into polygonal fields forming a second-order reticulation, as well as by the proportions of some parts of appendage armature and details of the penis structure.
You are not registered as a current subscriber. If your institution has an active subscription, contact us to ask for help with your computer's IP address. If you have an active personal subscription, log in.
Subscribe to Micropaleontology
|Online only||Added print|