|
There are 13 species of land hermit crab introduced
before, but actually after searching and seeking via the
web, currently up to 17 species can be found. |
|
10.C.
cavipes
Stimpson, 1858
|
|
20.C.
brevimanus
Dana, 1852
|
|
30.C.
perlatus
H. Milne Edwards, 1837
|
|
40.C.
rugosus
H. Milne Edwards, 1837 |
|
50.C.
purpureus
Stimpson, 1858
|
|
60.C.
violascens
Heller, 1862 |
|
70.C.
clypeatus J. C. Fabricius, 1787 |
|
80.C.
variabilis |
|
90.C.
compressus
H. Milne Edwards, 1837 |
|
10.C.
spinosus
H. Milne Edwards, 1837 |
|
11.C.
scaevola Forskal, 1775 |
|
12.C. olivieri
Owen, 1839) |
|
13.C. carnescens
Dana, 1851 |
|
14.C.
pseudorugosus
(Philippine Land Hermit Crab)
Nakasone, 1988
|
|
15.C.
rubescens
(Nigerian
Land Hermit Crab)
Greeff |
|
16.C.
longitarsis
de Man. |
|
17.Birgus latro
Linnaeus, 1767 |
However, among these 17 species, 5
of them only have names without any detailed species
information. And 9 of the most common
species are now widely owned by people who live in the
U.S., Australia, Japan and Taiwan etc. The following species
introduction classifies land hermit crabs into different
species by their body colors, characteristics and sizes etc.
Hoping that you can have better
knowledge and understanding about the features of different
species. This species introduction is merely a result of my
observation plus reference on the information on the web and
books. Please contact me if you find any mistakes through
Email
or discuss together in the
Forum.
The
habitat of land hermit crab is different for different
species. There are 3 kinds of habitat:
①Live
near beach area, highly
require sea water -
C.
perlatus, C.
violascens, C.
compressus
②Live
in the inland area, basically only require spring water -
C.
cavipes,
C.
brevimanus, C. clypeatus
③Live
between beach area and inland area -
C.
rugosus, C.
purpureus
.
In fact, to define different species, we can mainly see the
following 4 points:
1. If there are 7 ridge (////) on the upper part of the big
claw
2. If there are some hair on the inside part of both claws
3. The shape of the 3rd left walking leg.
4. The shape of
sexual tube
of male 5th legs (But
generally, it is difficult to see that part unless they are
out of shell, so it is difficult to use this point to define
a land hermit crab.)
In order to let people know more about
different species of land hermit crab, please kindly
understand and permit me to borrow some pictures from some
of you.
|
The most
common 9
species |
|
 |
|
Most common 9
Species
Destribution
(click to see larger picture) |
 |
|
C.
cavipes |
|
C.
brevimanus |
|
C.
perlatus |
|
C.
rugosus
|
|
C.
purpureus
|
|
C.
violascens |
|
C.
clypeatus |
|
C.
variabilis |
|
C.
compressus |
|
|
Reference Books: |
|
奥谷喬司／編著，楚山勇／写真，山溪フィールドブックス⑨サンゴ礁の生きもの，山と溪谷社。 |
|
總監修／池田啟
，監修／仲宗根幸男，週刊日本の天然記念物動物編42
- オカヤドカリ，小学館。 |
|
松久保 晃，FIELD
GUIDE 20 海辺の生物，小学館。 |
|
游祥平／
符菊永共，著臺灣的寄居蟹，南天書局。 |
|
陳育賢，臺灣自然觀察圖鑑38-海岸生物(一)
- 臺灣潮間帶生物700種 (一)，渡假出版社有限公司。 |
|
愛酷水族寵物月刊 AquaZOO news
10月號，威智文化科技出版有限公司。 |
|
・朝倉彰，ヤドカリ類の分類学、最近の話題－オカヤドカリ科 |
|
・Yukio
Nakasone(仲宗根幸男), Land Hermit Crabs from the Ryukyus, Japan,
with a Description of a New Species from the Philippines
(Crustacea, Decapoda, Coenobitidae) |
|
|
Reference Site: |
|
オカヤドカリの小部屋
|
|
Heart Mitt Club |
|
The Crab Street Journal |
|
