Three species of obligate subterranean asellids were previously known from Ohio, all assigned to the stygia Group of the genus Caecidotea: C. stygia, C. filicispeluncae, and C. rotunda. Caecidotea insula, n. sp., is described here from two caves on South Bass Island, Ottawa County, Ohio. This island is only 7 km from the Canadian border. The new species is assigned to an assemblage proposed her...

Rodents of the family Octodontidae, endemic to South America, represent a group with low taxonomic richness (six genera and 14 species) but have great ecomorphological diversity epigean, semi-fossorial, fossorial, subterranean forms. We analyzed morphometric variation in humerus ulna, possible relationship substrate preference use, presence phylogenetic signal forelimbs traits (five biomechanic...

A new species of Cyphophthalmi belonging to the Laurasian family Sironidae is described and illustrated on the basis of external anatomy and genitalia. Siro crassus sp. n., known from leaf litter from two beech forest localities in Eastern Slovenia, is a relatively large (2.2–2.6 mm in length), long-legged epigean species, in which the patella of leg IV surpasses the end of the body. The new sp...

The Yucatán Peninsula is a karstic region, rich in subterranean environments with diverse crustacean stygobiont fauna. In order to gain insights into the biological evolution of this we evaluated ostracode species composition caves and cenotes five independent sampling campaigns (2008, 2013, 2017–2019). Using morphometric analyses, inter-population morphological variability; using molecular ana...

Hervant, F., Mathieu, J. & Durand, J. P.: Circadian rhythmicity, respiration and behavior in hypogean and epigean salamanders. Nat. Croat., Vol. 10, No 3, 141–152, 2001, Zagreb. Comparisons of circadian rhythmicity, behavior, and metabolism between surface and cavedwelling salamanders enable elucidation of evolutionary trends in these processes. The obligate cave-dwelling proteid Proteus anguin...

An inventory of the woodlice fauna of the former USSR yielded 190 species, 64 of them were recorded from the territory of Russia. According to the cartographic analysis, the limits of distribution of epigean terrestrial isopods over the area, excluding mountains, is explained by temperature. No woodlice records were found outside the isocline of 120 days a year with the mean daily air temperatu...

Two new species of ricinuleids of the genus Pseudocellus are described from Mexico: Pseudocellus cruzlopezi sp. nov. from Oaxaca, and Pseudocellus monjarazi sp. nov. from Chiapas. Both species are described from adult males and females. The first species is epigean and edaphomorphic, whereas the second is cavernicolous and troglomorphic. The number of known species of the genus Pseudocellus inc...

Tritomurus velessp. n. (Tomoceridae) is described from a Croatian cave. It is characterized by troglomorphic features (absence of eyes, reduced pigmentation, slender claw, pointed tibiotarsal tenent hairs) that only compare, among Tomoceridae, to the microendemic species Tritomurus falcifer from the Pyrénées. Tritomurus veles also shares with Tritomurus falcifer the absence of macrochaetae on h...