no. 2065. THE CRUSTACEA EUPHAUSIACEA— HANSEN. 61 



2. THYSANOPODA MONACANTHA Ortmann (1893). 



1910. Thysanopoda agassizii H. J. Hansen, Siboga Exp., vol. 37, p. 87, pi. 13, figs. 



3a-3tf (with synonymy). 

 1912. Thysanopoda monacaniha H. J. Hansen, Mem. Mus. Comp. Zool., vol. 35, 



No. 4, p. 212, pi. 4, figs. 3a-3c. 



Occurrence. — Taken in the western Atlantic at three stations: 



Sta. 2667. May 5, 1886. Lat. 30° 53' N.; long. 79° 42' 30" 

 W. 273 fathoms. 1 specimen. 



Sta. 2665. May 4, 1886. Lat. 29° 47' N.; long. 80° 05' 45" W. 

 263 fathoms. 1 specimen. 



Sta. 2151. April 10, 1884. Caribbean Sea. Lat. 15° 28' 39" N.; 

 long. 80° 36' W. 653 fathoms. 1 specimen. 



In 1894 Ortmann mentioned specimens from the two following 

 stations in the Pacific and referred them to his Thysanopoda agassizii, 

 new species, which is synonymous with T. monacaniha: 



Sta. 3414. April 8, 1891. Off Mexico. Lat. 10° 14' N.; long. 

 96° 28' W. 200-0 fathoms. 1 specimen. 



Sta. 3382. March 7, 1891. Off Panama. Lat. 6° 21' N.; long. 

 80° 41' W. 200 fathoms; closed part of the Tanner net. 1 specimen. 



In 1905 Ortmann recorded a specimen from the Hawaiian Islands 

 at the following locality: 



Sta. 3804. March 21, 1902. Lat. 24° 58' 42" N.; long. 149° 11' 

 W. 50-0 fathoms. 1 specimen. 



The collection in hand contains a specimen from each of the two 

 first-named stations: 3414 and 3382, but no specimen from Station 

 3804, and for the following reason some error must have crept in. 

 The specimen marked "type" is from Station 3414 and measures 

 30 mm. from the tip of the rostrum to the end of the telson, while 

 Ortmann gives the length of his type to be 19 mm. But in his paper 

 on the Schizopoda from the Hawaiian Islands Ortmann says the 

 specimen in question (from Station 3804) is 32 mm.; consequently 

 I suppose that in one way or another this specimen has in America 

 been put with the label indicating Station 3414, and that the much 

 smaller specimen from this station has been lost. This is the only 

 explanation I can give. 



Distribution. — The wide distribution has been given in my Har- 

 vard paper quoted. Tattersall enumerated a number of stations in 

 the Indian Ocean in 1912. 1 



3. THYSANOPODA 2EQUALIS H. J. Hansen (1905). 



1910. Thysanopoda sequalis H. J. Hansen, Siboga-Exp., vol. 37, p. 84, pi. 12, 

 figs. 4a-4c; pi. 13, fig. la. 



Occurrence. — Taken in the northwestern Atlantic at a single sta- 

 tion by the Albatross: 



Sta. 2224. September 8, 1884. Lat. 36° 16' 30" N.; long. 18° 21 ' 

 W. 1 specimen. 



» Trans. Linn. Soc. London, ser. 2, vol. 15, pt. 1, p. 129. 



