196 Transactions. — Zoology. 



2. Munida gracilis, Henderson, 



Kep. Auom. Chall. Exped., p. 143, pi. xiv., fig. 4. 



This species is characterized by its long upturned rostrum, 

 which is about two-thirds the total length of the carapace, 

 and by its very long slender chelipedes. 



Two specimens were taken in the Tasman Sea west of 

 New Zealand, near the line of the Australian cable, at a depth 

 of 275 fathoms. 



3. Munida microphthalma, A. M.-Edw. 

 Eep. Anom. Chall. Exped., p. 127, pi. iii., fig. 4. 



This species has been found at three widely separated 

 localities — viz., at five different stations in the West Indies, 

 at depths varying from 390 to 1,030 fathoms ; near Ascension 

 Island, in the Atlantic, at a depth of 425 fathoms ; and at a 

 station north of the Kermadec Islands, at a depth of 600 

 fathoms. 



Genus 3. Elasmonotus, A. M.-Edw. 



This genus includes only deep-sea forms, which have the 

 eyes more or less defectively developed and lacking pigment. 

 They have a flattened rostrum and unarmed carapace. 



Elasmonotus marginatus, Henderson. 

 Rep. Anom. Chall. Exped., p. 161, pi. xix., fig. 2. 



Two ovigerous females were taken at Station 168 ("Chal- 

 lenger " Exped.), about sixty miles east of Cape Turnagain, 

 from a bottom of blue mud, at a depth of 1,100 fathoms. 



Genus 4. Uroptychus, Henderson (DiptycJius, A. M.-Edw.). 



A genus of deep-sea forms, mostly small, with the caudal 

 swimming-fin reduced, and the limbs adapted to chnging 

 among the branches of corals. 



Three species were recorded from the seas to the north of 

 New Zealand. 



1. Uroptychus spinimarginatus, Henderson. 



Rep. Anom. Chall. Exped., p. 176, pi. xxi., fig. 2. 



Taken at Station 170, off the Kermadec Islands, at a depth 

 of 520 fathoms. Also found south of" the Philippines. 



2. Uroptychus politus, Henderson. 



Rep. Anom. Chall. Exped., p. 178, pi. vi., fig. 2. 



Taken at Station 171, near the Kermadec Islands, at a 

 depth of 600 fathoms. 



