CHJM Fransen, D epartm ent of M arine Zoology, N etherlands C entre for B iodiversity N
aturalis, PO Box 9517, 2300 RA L eiden, The N etherlands (charles. fransen@ ncbnaturalis …

Sister species separated by the Isthmus of Panama have been widely used to estimate rates
of molecular evolution. These estimates are based on the assumption that geographic …

It is widely believed that gene flow connected many shallow water populations of the
Caribbean and eastern Pacific until the Panama seaway closed 3.0 to 3.5 million years ago …

We review the taxonomy of sponge-dwelling shrimp in the “Gambarelloides species group”
within the genus Synalpheus Bate 1888, an informal but widely recognized group that is …

Degree of genetic divergence is frequently used to infer that two populations belong to
separate species, or that several populations belong to a single species. I explore the logical …

COMPARATIVE FECUNDITY IN DECAPODA I 271 crustaceans, either in terms of egg
numbers or egg mass volumes, can become a very tedious and time consuming procedure …

Life-history traits were studied in one marine and four fresh-water shrimps from tropical
regions of western South America: Palaemon northropi, P. pandaliformis, Macrobrachium …

The sexual system of the caridean genus Lysmata has been described until recently as
protandric hermaphroditism, in which individuals change sex from male to female with …

An updated and extensively revised checklist of the arthropods of Hispaniola (Dominican
Republic and Haiti) is presented 11 years after the publication of the original in 2008. It …

Sexual Selection and Dimorphism in Two Demes of a Symbiotic, Pair-Bonding Snapping
Shrimp Page 1 Evolution, 34(1), 1980, pp. 161-173 SEXUAL SELECTION AND DIMORPHISM …