高知県柏島と室戸市から得られたオオメメダイ科魚類ミナミメダイ Ariomma brevimanum の記録
The ariommatid, Ariomma brevimanum (Klunzinger, 1884), is recorded from Kashiwa-jima island and east of Cape Muroto, Kochi prefecture, Japan, on the basis of a single specimen respectively. It represents the third record for the species from Shikoku. The two specimens are discribed and their photographs are provided. Ontogenetic proportional and color changes are discussed. Examination of the two specimens revealed that irregular black blotches on the body disappeared with growth between 138.0 and 173.5mm standard length.
We investigated mammal fauna and the differences of their habitat usage
bcsed on infrared-triggered camera on western Tokushima Prefecture, Japan.
Cameras were set on seven points on forest, seven points on abandoned land,
and 17 points on Miscanthus sinensis grassland during July to November 2015. Although nine mammals were photograhed,
68.4% of these photographs were those of Cervus nippon. Abandoned land and Miscanthus sinensis grassland were mainly used as feeding site for Cervus nippon, Sus scrofa and Lepus brachyurus. The appropriate management of lands, especially, abandoned land and Miscanthus sinensis grassland may lead to prevent the increasing of Cervus nippon and Sus scrofa populations.
コテングコウモリ Murina ussuriensis の２年間の活動期の模擬枯葉のねぐら利用と母仔の観察例
The use of roosts by Ussurian tube-nosed bats(Murina ussuriensis) was studied using artificial dead leaves composed of hemp or paper. From
mid-April 2013 to late November 2014, leaves were placed on branches in
the lower layer of the forest. Group of females were observed seven times
from mid-May to mid-June, corresponding to the pregnancy period. The number
of individuals in the roost changed in each observation. A mother and her
infants were observed in mid-June, and two mothers and their infants were
observed at the end of July. After August, females roosted individually,
with one exception. The use of leaves by a single male was observed during
the study period. Owinig to recepture, some individuals tended to stay
in the study sites or return to the site in the next spring.
高知県西部におけるコテングコウモリ Murina ussuriensis 哺育集団の模擬枯葉利用の記録（コウモリ目：ヒナコウモリ科）
A nursery colony including infants of Ussurian tube-nosed bats (Murina ussuriensis) was observed once in the artificial roost made of hemp. The number of
adults was five and infants was ten in roost.
In November 2016, a total of 541 crevices at the junctions of elevated railways were visually inspected in central Kochi prefecture to assess the roost use by bats. The author found 775 bats in 161 crevices. All bats were considered to be the common Japanese pipistrelle Pipistrellus abramus, and rare bat species were not found. Although the urban environment had positive effects on the roost use by bats, cultivated lands and forests had negative effects on it.
A female Lates japonicus known as akame in 1036mm standard length was caught by set-net off Shiina
in Muroto City, Kochi Prefecture on 2 February, 2017. The specimen represents
a new locality for the species in Kochi Prefecture. Some diagnostic characters
of this fish differed from the original description of the species. Important
morphometric and meristic characters of the species are reviewed based
on published and unpublished data.
Five lacewing species: Spilosmylus tuberculatus (Osmylidae), Baliga micans, Distolean contubernalis, Paraglenurus japonicus (Myrmeleontidae), and Ascalohybris subjacens (Ascalaphidae), were collected from the islands of western Shikoku (Ehime
and Kochi Prefectures).
Nipponomysella subtruncata (Heterodonta: Galeommatoidea). symbiotic with the sipunculan worm Siphonosoma cumanense was collected from Uranouchi Inlet, Tosa bay, Kochi Prefecture, Japan.
This clam has been designated as one of the nearly threatened species both
by the Ministry of the Environment and by the Japanese Association of Benthology.
The local cord of the clam from southern part of Shikoku Island.
Bulletin of the Shikoku Institute of Natural History NO.11
Macrophthalmus microfylacas (Crustacea:Decapoda: Macrophthalmidae) was collected from a tidal flat in Uranouchi Inlet, Tosa Bay, Kochi Prefecture, Japan. A total of 17 crab specimens were obtained from September 2012 to December 2017, of which three were ovigerous. The specimens were identified as M. microfylacas by the characters of small body size, long eye pedunche and the shape of male cheliped.