アシロ科オビアシロ属の１種の仔魚：訂正あり

カワリアシロ　カラスオビアシロ　Brotulotaenia nielseni
（カワリアシロ属→オビアシロ属に和名を訂正：理由については文末を参照）

出典：
Okiyama, M. and H. Kato, 2002. Larval development of Brotulotaenia nielseni (Ophidiiformes, Ophidiidae, Brotulotaniinae), with notes on relationships. Bull. Natn. Sci. Mus., Tokyo, Ser. A, 28: 159-170.

参考：

大橋慎平・今村　央・矢部　衞, 2012.

日本周辺海域から採集された日本初記録のアシロ科魚類カラスオビアシロ（新称）Brotulotaenia nielseni.

魚類学雑誌 59(2):135–139.

https://www.jstage.jst.go.jp/article/jji/59/2/59_135/_pdf/-char/ja

さて，ハワイ沖でblack water diving (blue water diving at night)中に撮影されたカワリアシロ属 オビアシロ属の１種の仔魚↓の写真を見ると，各鰭条が長くて見事な装飾物がある。

Suntsov (2007) は，鳥の羽毛への擬態ではないかと考えている。

伸長鰭条は，稚魚ネット等での採集時に切れてしまうのだろう。採集標本に基づいて研究している多くの研究者は，悲しいかな実際の姿とは違うものを見ているということだ。

Larval Cusk Brotulotaenia sp.
Photographer: Matthew D'Avella © Matthew D'Avella
出典：
http://australianmuseum.net.au/cusk-brotulotaenia-sp

http://australianmuseum.net.au/image/ventral-view-of-a-larval-cusk

出典：

http://forums.scubadiving.com/showthread.php?103029-A-pic
 

出典：Joshua Lambus

http://www.divephotoguide.com/underwater-photography-special-features/article/josh-lambus-pelagic-magic/

http://www.divephotoguide.com/user/jlambus/gallery/the_abyss_blackwater/

https://twitter.com/JLambus

http://www.jlambus.com/SHOP/Blackwater/

https://www.youtube.com/watch?v=tksDgijuelE

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Suntsov, A. 2007. Brotulotaenia (Teleostei: Ophidiiformes) larval development revisited: an apparently new type of mimetic resemblance in the epipelagic ocean. Raffles Bulletin of Zoology. Supplement 14: 177-186.

https://lkcnhm.nus.edu.sg/app/uploads/2017/06/s14rbz22_Suntsov-pp177-186.pdf
↑鳥の羽毛への擬態に関する考察が興味深い。

Abstract: 

Numerous examples of the mimicry of inanimate objects by living animals have been well-documented, mainly in the terrestrial realm. The epipelagic ocean, with its cover-deficient properties would seem to be a less suitable habitat for the development of such defensive strategies. Thus, the main tactic utilized by many planktonic organisms, including fish larvae, is to become virtually transparent. Despite the recent descriptions of the early life history of the ophidiid species Brotulotaenia nielseni, the form-function relationships during early ontogeny of this rare deep-sea species have never been addressed. The recent find of a larval B. nielseni in near-perfect condition allowed further observations on its morphology which led to a hypothesis regarding its mimetic resemblance to a bird feather, an apparently new defense strategy in the pelagic environment. In this paper, I approach the unusual Bauplan of larval Brotulotaenia from a functional morphology standpoint and show how a suite of larval features facilitates the resemblance to an inanimate model, thus offering possible protection against visual predators. The numerous similarities between the hypothesized model (bird feather) and the mimic (fish larva), as well as certain basic requirements for the development of such a mimetic resemblance are reviewed and discussed. 

参照：

Fahay, M.P., and J.G. Nielsen (2003). Ontogenetic evidence supporting a relationship between Brotulotaenia and Lamprogrammus (Ophidiiformes: Ophidiidae) based on the morphology of exterilium and rubaniform larvae. Ichthyological Research, 50(3): 209-220.

●和名の訂正については，以下を参照

「日本産稚魚図鑑第二版（2014）で提唱された新称の分類群：再追記あり」

2016-10-27

http://ameblo.jp/husakasago/entry-12213329774.html