FISHERY BULLETIN: VOL. 71, NO. 3 



series into the IP (isthmal) and PV (abdominal) 

 groups. All photophores, regardless of how 

 rudimentary, were counted. There are two 

 closely associated gill rakers at the angle of the 

 first arch: The upper one is associated with 

 the epibranchial and is included in the count 

 for the upper limb, while the lower raker is in- 

 cluded in the count for the lower limb. The 

 pelvic rays of most specimens of Argyri-p)ius 

 I have examined are usually split and can only 

 be counted accurately when submerged in fluid. 

 Most vertebral counts were obtained from radio- 

 graphs. 



As an aid in the analysis of the morphomet- 

 ric characters, measurements obtained for the 

 various body parts of all the specimens of 

 Argyriynus I examined were plotted as func- 

 tions of the standard length (SL) in both origi- 

 nal units and as percent of SL. 



ARGYRIPNUS BROCKI NEW SPECIES 



(Figure 1) 



Holotype. — U.S. National Museum (USNM) 

 No. 207653, female, 81.5 mm SL, collected by 

 the NMFS RV Toicnseud Cromwell at station 

 TC-36-24 (Toivnsend Cromivell cruise 36, sta- 

 tion 24); north edge Penguin Bank, Hawaiian 

 Islands, lat. 21°09.7'N, long. 157°29.3'W (start 

 of haul), 2235-0028 (local time), 4-5 May 1968, 

 183 m, 12.5-m shrimp trawl (ST). 



Paratypes. — Four specimens (of 10 from 

 station), USNM 207654, 46.5, 50, 52.5, and 56 

 mm SL, station TC-35-33, north edge Penguin 



Bank (lat. 12°09.7'N, long. 157°25.0'W) 1912- 

 2052, 7 April 1968, 183 m, 12.5-m ST. One 

 specimen, USNM 207655, 51.2 mm SL, station 

 TC-35-34, north edge Penguin Bank (lat. 

 2r09.7'N, long. 157°25'W), 2225-2353, 7 April 

 1968, 183 m, 12.5-m ST. One specimen, USNM 

 207656, 54 mm SL, station TC-35-35, north 

 edge Penguin Bank (lat. 21°09.7'N, long. 157° 

 24.9'W), 0127-0307, 8 April 1968, 183 mm, 12.5- 

 m ST. One specimen, USNM 207657, 84 mm 

 SL, station TC-35-39, Kalohi Channel (lat. 

 20°59.3' N, long. 157°03'W), 1902-2007, 8 April 

 1968, 274 m, 12.5-m ST. Four specimens (of 21, 

 including holotype), USNM 207658, 64.5, 70.5, 

 83, and 91.5 mm SL, station TC-36-24, same 

 data as for holotype. Four specimens (of 51) 

 USNM 207659, 64, 65, 80, and 91 mm SL, sta- 

 tion TC-36-26, north edge Penguin Bank (lat. 

 21°09.7'N, long. 157°29.7'W), 0336-0521, 5 May 

 1968, 183 m, 12.5-m ST. Two specimens, USNM 



207660, 66.5 and 75 mm SL, station TC-40-2, 

 north edge Penguin Bank (lat. 21°09.9'N, 

 long. 157°24.1'W), 2144-2344, 6-7 November 

 1968, 183 m, 12.5-m ST. One specimen, USNM 



207661, 77.5 mm SL, station TC-40-16, north 

 edge Penguin Bank (lat. 2r09.8'N, long. 157° 

 24.5'W), 2021-2205, 8 November 1968, 179 m, 

 12.5-m ST. One specimen, USNM 207662, 70 

 mm SL, station TC-40-20, north edge Penguin 

 Bank (lat. 21°09.8'N, long. 157°24.3'W), 2025- 

 2222, 9 November 1968, 12.5-m ST. 



Additionally, specimens of A. Brocki not in- 

 cluded in the type series were taken at the 

 following stations during the surveys: TC-33-15 

 (1 specimen), Pailolo Channel (lat. 21°01.5'N, 



Figure 1. — Holotype of Ar^yripnus hrocki. VSUM 207653. 



828 



