The atyid shrimp (Crustacea: Decapoda: Atyidae) rostrum: phylogeny versus adaptation, taxonomy versus trophic ecology Author Jugovic, Jure Author Prevorčnik, Simona Author Aljančič, Gregor Author Sket, Boris text Journal of Natural History 2010 2010-10-12 44 41 - 42 2509 2533 http://dx.doi.org/10.1080/00222933.2010.502258 journal article 304346 10.1080/00222933.2010.502258 a71747cd-7a87-4b2e-9655-94832562798d 1464-5262 5210579

Table 4. Swallowing time efficiency (in seconds) for two specimens of Proteus, while feeding on Troglocaris without rostra and with long undamaged rostra.

Time efficiency: mean ± SD (n)
	Shrimps with long undamaged rostra	Shrimps without rostra
Proteus 1	38.5 ± 12.8 (n = 6)	14.3 ± 12.6 (n = 6)
Proteus 2	10.3 ± 8.5 (n = 4)	9.3 ± 6.8 (n = 7)
Mean ± SD, mean ± standard deviation; n, number of eaten shrimps.