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PROCEEDINGS OF THE NATIONAL MUSEUM 



Discussion. — The presence of ocular scales separated by a deep 

 pit, more than five teeth on the raptorial claw, and only one pair of 

 accessory median carinae on the telson will distinguish O. brevirostris 

 from all other species in the genus. The ocular scales and character- 

 istic intervening pit are visible even in first stage postlarvae. 



Figure 7. — Odontodactylus brevirostris (Miers). Female, TL 26.9 mm, Hawaii: a, outline 

 of front; b, outline of sixth abdominal somite and telson. Male, TL 26.5 mm, Hawaii: 

 c, outline of front to show ocular scales; d, outline of last abdominal somite and telson. 



It is with some hesitation that I use the name "brevirostris" for this 

 species. The type of 0. brevirostris is a young male with only sub- 

 median carinae on the telson, but the ocular scales are clearly separated 



