Header Menu Menu of this Sites

Journal of the Speleological Society of Japan


Volume 3

The Cave Trechines of the Genus Allotrechiama (Coleoptera, Trechinae)
The trechine beetles belonging to the genus Allotrechiama are enumerated. In addition to the two species already known, two new species are described and illustrated : A. dentifer from Shiratake-do Cave and A. mandibularis from Kyusen-do Cave and Kuronita-no-tate-ana Pot. A new subgenus, Nothaphaenops is erected for the latter species, which is one of the Japanese trechines showing the highest specialization for the subterranean existence. New localities are recorded for A. tenellus.
 A New Genus and Species of Cave-dwelling Cricket from Luzon,the Philippines
A new cave-dwelling species of phalangopsid cricket belonging to a new genus is described and illustrated from a cave in Bontoc Prov., northern part of the Island of Luzon, the Philippines, under the name of Luzonogryllus scotophilus. The new genus Luzonogryllus is probably related to Parendacustes among the known genera, but differs in the number of spincs on hind tibia and more reduced elytral venation.
Three New Species of Subterranean Asellids from Southern Kyushu and the Kii Peninsula, Japan
Three new species of the subgenus Asellus (Phreatoasellus) are described from two caves and a prospecting adit in western Japan. They are: A. (P.) uenoi from Kyusen-do Cave,  A. (P.) iriei from Nozoe-no-ana Cave, and  A. (P.) minatoi from a prospecting adit at Shimodaira. It is noteworthy that the distribution of the subgenus is restricted within the underground waters of the western half of the main islands of Japan, and that in one of the present three new species, a pair of the first pleopods, though sometimes ruditmentary, was observed in four of the seven females examined.
Spiders from Tuff and Wave-cut Caves of Southern Kyushu,Japan(I)
The spiders found in tuff caves and wave-cut caves of southern Kyushu are dealt with. They were collected by Dr. S.-1. UENO and Mr. T. IRIE in the years 1971-1977, and are classified into twenty species, thirteen of which are definitely identified and listed in the present paper. Discussions are made on the variation shown by Leptoneta iriei and on the presumable affinity of three undetermined species of Cybaeus. Of the remaining four, a Coelotes cannot be identified at present, while the other three are considered to be new species, the descriptions of which will be given in the second part of this paper.
A New Subgenus and Species of Troglobiontic Water-mite from New Zealand
A female of a troglobiontic water-mite, Uralbia (Zelandalbia) hopkinsi subgen. et sp. nov., is described from the cave water in Upper Selenite Cave, Piopio, South Auckland, New Zealand.
 Environment and Microorganisims Associated with the Formation of Moonmilk
.The environmental conditions under which moonmilk is formed were studied with the samples from the two caves, Uchimagi-do (Iwate Pref.) and Awoiwa-do (Yamanashi Pref.), Japan. It is forrned at a low temperature (8-lO'C) and in such places as are very close to the surface. The precipitate in the moonmilk consists of microcrystalline calcite (<lOÉ m), of which the equilibrium PCO2 was calculated from the data of the composition of interstitial water. The PCO2 was about three times as high as that of the air. This seems to have been caused by the activities of microorganisms. The number of aerobic heterotrophic bacteria in the moonmilk amounted to 106/g of the wet sample, and a high count of nitrifying bacteria was also detected. The microflora of the moonmilk mainly consisted of Gram-negative rods and seemed to be similar to those of fresh water. The bacteria isolated from the two samples had several physiological properties in common. Though mechanisms remain unsolved, the existence of microorganisms appears to be indispensable for the formation of the moonmilk.
Discovery of Guano-minerals in Ambo Limestone Cave of Peru
A new locality of guano-minerals is reported based on a specimen from Ambo Limestone Cave, Huanuco County, Peru. X-ray and chemical data are presented. It is suggested that the guano-minerals consist of brushite (CaHP04・2H20) and gypsum (CaS04・2H20).