Volume 20, Issue 1/4 (1991)
Cover and Front Matter
Articles
Speciation of troglobites: studies in the San Antonio cave (Oaxaca, Mexico)
Horst Wilkens, Peter Junge, and Thomas G. Langecker
Metabolic efficiency and regulation of body weight: a comparison between life in hypogean and epigean ecosystems
Jayant Biswas
Population size of Pyrenean troglobiont coleopters (Speonomus species) in a cave in Belgium
Raymond Tercafs and Christine Brouwir
Revision of the genus Troglophilus (Orthoptera, Rhaphidophoridae) in Crete, Greece
Dimitrios Kollaros, Kaloust Paragamian, and Anastassios Legakis
Observations on the biology of Spelaelacris tabulae Peringuey (Orthoptera, Rhaphidophoridae), from the Wynberg cave (Capetown, South Africa)
Gianmaria Carchini, Claudio Di Russo, and Mauro Rampini
