MARINE SILVER HATCHETFISHES — SCHULTZ 601 



Argyropelecus aflinis, Jespersen in Joubin, Faune ichthyologique de 1'Atlanlique 

 nord, No. 15, fig., 1934 (Cape Verde Islands). 



Study material: MCZ 37641 Captain Bill II station 92, July 



25, 1952, hit. 42°39' N., loug. 63°41' W., depth 340 to 350 fathoms, 

 1 specimen, 44 mm. MCZ 37422, Captain Bill II station 48, June 



26, 1952, lat. 39°56' N., long. 69°37' W., depth 360 to 445 fathoms, 

 1 specimen, 57 mm. CNHM 45943, Oregon station 841, November 

 6, 1953, lat, 28°58' N., long. 88°0' W., depth 830 to 930 fathoms, 

 1 specimen, 90 mm. UMML 925, Pelican station 57, June 10, 1956, 

 lat. 29°59' N., long. 80°07' W., depth 165-169 fathoms, 1 specimen, 

 79 mm. CNHM 64457, Gulf of Mexico, Oregon station 1302, May 

 26, 1955, lat. 28°53' N., long. 87°58' W., depth 890 fathoms, 1 speci- 

 men, 87 mm. 



Distinctive characters: The body deep, greatest depth con- 

 tained about 1.9 to 2.0 times in standard length; dorsal blade high, 

 height of last spine above pigmented area contained 1.5 to 1.9 times 

 in length of base of soft dorsal; one or two small spines behind orbit. 



Dr. N. B. Marshall, British Museum (Natural History) has ex- 

 amined the three types and finds that the postabdominal spines are 

 the same as in affinis, as is shown in figure 26a, p. 634. The sketch 

 of these spines sent with his letter of January 21, 1958, is greatly 

 appreciated. 



Description: The arrangement of photophores and other details 

 of this species are represented in figure 5, p. 624. Counts made 

 are given in table 1, p. 591, and table 2, p. 592; measurements made 

 are given in table 3, p. 593. 



Color: The color pattern is shown is figure 5, p. 624. 



Range: So far this species has been found only in the Atlantic 

 Ocean. 



Argyropelecus Iiemigymnus Cocco 



Figure 6 



Argyropelecus emigymnus Cocco, Giorn. Sci. Lett. Arti Sicilia, vol. 26, No. 77, 

 p. 146, 1829 (type locality, seas around Messina. The Italian spelling of 

 "emi," meaning half, was corrected to "hemi" in later publications and has 

 consistently been used by all authors since 1829. Therefore, through long 

 usage I continue to use hemigymnus). 



Argyropelecus hemigymnus Cocco, Isis (Oken), vol. 24, pt. 12, p. 1342, 1831 (type 

 locality, "seas around Messina"). — Bonaparte, Iconografia della fauna 

 Italica . . . vol. 3, Pesci, fasc. 28, pi. 121, fig. 3, 1840 (Mediterranean Sea); 

 Catalogo metodico dei pesci Europei, Napoli, p. 37, 1846 (Mediterranean). — 

 Cuvier and Valenciennes, Histoire naturelle des poissons, vol. 22, p. 398, 

 1849 (Mediterranean). — Lowe, Proc. Zool. Soc. London, pt. 18, p. 248, 1850 

 (Madeira). — Giinther, Catalogue of the fishes in the British Museum, vol. 

 5, p. 385, 1864 (Mediterranean and Atlantic Ocean). — Canestrini, Fauna 

 d'ltalia, vol. 3, Pesci marini, pt. 2, p. 119, 1872. — Doderlein, Atti Accad. 



