2006年3月31日 星期五

邪惡之眼



可曾看過瞳孔會變形的魚類?

平常是大圓眼的Reptilian Snake Eel
水滴狀的瞳孔
是瞳孔本身的變形
還是眼皮遮蔽的效果
至今不解？

耶，牠有眼皮嗎
又多了一個問題！

“有形無神”
是拍水中生物常有的通病
比對多數Reptilian Snake Eel的照片
這張“有神無形”的微距
有名列前茅的實力

2003年攝於印尼藍碧海峽

標籤： ,

posted by Steve Kuo at 清晨7:47

3 Comments:

Anonymous 匿名 said...

關於eyelids,魚有沒有眼皮?
Bony fishes don't have eyelids. Cartilaginous fishes (sharks and rays) have a more or less developed lower eyelid thay may or may not have a nictitating membrane (a transparent extra eyelid). In any case, sharks close their eyes for protection when they bite, not for sleeping. And the upper eyelid is just a tegumentary fold.

沒有眼皮怎麼睡覺呢?
Fish sleep with their eyes open (the definition of fish "sleep" is not completely agreed upon, some researchers speak of "sleep-like behavior").

算了!管牠有沒有眼皮,管牠要不要睡覺,照得美照出眼神才是最重要的.

2006/4/1 凌晨12:04  
Blogger Steve Kuo said...

3Q very much!

2006/4/1 清晨7:51  
Blogger Steve Kuo said...

閑閑無事，再繼續追查瞳孔之謎
發現有兩種可能...

A. 牠的瞳孔可以變化，原來是圓眼http://www.vibrantsea.net/snakeeel16_anilao30.htm

B. 牠本來就是細梭狀的瞳孔http://www.starfish.ch/photos/fishes-Fische/eels-Aale/Brachysomophis-henshawi1.jpg
http://www.starfish.ch/photos/fishes-Fische/eels-Aale/Brachysomophis-henshawi2.jpg
http://www.deepseaimages.com/dsilibrary/showphoto.php?photo=7447&si=deep

我比較傾向後者，圓眼應該是Crocodile Snake Eel，這裡有比較清楚的圖可分辨http://www.fishbase.org/summary/SpeciesSummary.php?id=12887

2006/4/2 晚上10:26  

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