Fishes of Mauna Loa. Ill — HAIG 
321 
TABLE 1 
MEASUREMENTS* AND COUNTS OF HAWAIIAN STERNOPTYCHIDAE 
S. diaphana 
A. affinis 
A. heathi 
+ . sladeni 
Head 
286-332 
281-343 
298-358 
324-364 
Orbit 
161-210 
124-140 
142-157 
132-155 
Snout 
46-72 
75-90 
86-108 
66-92 
Gape 
198-261 
232-261 
250-274 
258-289 
Snout to D origin 
630-764 
470-490 
461-543 
502-543 
Snout to V origin 
539-670 
568-640 
555-591 
615-675 
Snout to P origin 
278-459 
311-405 
330-362 
338-399 
Snout to A origin 
542-693 
628-679 
590-645 
639-706 
1st D ray to ant. abdominal spine 
875-1065 
531-605 
555-591 
604-656 
1st D ray to post, abdominal spine .... 
800-989 
352-433 
414-466 
511-541 
D ray 1 to A ray 1 
725-890 
318-347 
268-308 
403-433 
Ant. abd. spine to post. abd. spine 
262-413 
385-423 
355-374 
386-417 
Ht. dorsal blade. 
164-242 
24-37 
59-82 
29-50 
Dorsal rays 
10-11 
9 
8 
9 
Anal rays 
13-15 
13 
11 
11-12 
Pectoral rays 
9-11 
11 
11 
9-11 
Ventral rays 
5 
6 
6 
o 
Gillrakers 
11-17 
(5-7+ 6-10) 
17-22 
(7-9+10-13) 
19-21 
(8-9+11-12) 
18-20 
(8-9+10-11) 
* Measurements are given in thousandths of the standard length. They reflect the great intraspecific variation 
occurring in fishes of this family, even within a restricted geographical area; and point up the fact that caution 
must be used when one attempts to separate species on the basis of proportional differences. 
does not represent an "Albatross” station 
number. 
Schultz (1938: 142) gave the locality "south 
of Minamitori Shima, Marcus Islands” for 
this species, in addition to the Hawaiian Is- 
lands. Being unable to locate this reference 
in the earlier literature, the present writer 
consulted Dr. Schultz, who replied (in litt.) 
that he is unable to verify the Marcus Island 
locality and that for the present it should be 
considered an error. Matsubara’s (1950) state- 
ment that the species occurs in Japan was 
probably based on Schultz’s record. Norman 
(1939: 20) reported it from the Zanzibar area, 
basing his identification on Schultz’s revision 
of the genus. 
Argyropelecus affinis Garman 
Argyropelecus affinis Garman, 1899: 237 (type 
locality, "Albatross” Sta. 2117, off Bird 
Island in the West Indies, 683 fms.). 
MATERIAL examined: 2 specimens, 40.3 
and 58.3 mm. in standard length, taken off 
the Mauna Loa lava flow, Hawaii, by Y. 
Yamaguchi, June 6, 1950. 
1 specimen, 59-5 mm. in standard length, 
taken off the Mauna Loa lava flow, Hawaii, 
by Gosline, Hayes, Keen, and Ellis, June 
6, 1950. 
Argyropelecus affinis has been recorded from 
the Indian and the north and south Atlantic 
oceans, and the writer has seen considerable 
material from the eastern Pacific. However, 
until the present time it has not been reported 
from the central Pacific region. 
Argyropelecus heathi Gilbert 
Argyropelecus heathi Gilbert, 1905: 601, pi. 72, 
fig. 1 (type locality, "Albatross” Sta. 4107, 
Kaiwi Channel, between Oahu and Molo- 
kai, 350-355 fms.). 
Argyropelecus heathi , Jordan and Seale, 1906: 
190 (listed only). 
Argyropelecus heathi , Jordan and Jordan, 1922: 
9 (listed only). 
