564 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 
According to the data available, A/. nigrescens appears to have a 
more northern distribution than WM. adustus. M. nigrescens is a 
close ally of the Hawaiian M. acipenserinus and of the Panamaic 
M. tenvicauda. 
Genus TRACHONURUS Giinther. 
73. TRACHONURUS VILLOSUS (Giinther). 
Trachonurus villosus GirBERT and Husss, Proce. U. 8S. Nat. Mus., vol. 51, 
1916, p. 205 (description of Japanese Jeee ul” with synonomy ).—WEBER, 
Fische der Siboga-Expedition, p. 165, pl. 5, fig. 2. 
List of stations. 
Depth | Bottom | Number 
air ons Locality. in tempera- | of speci- 
< fathoms. ture. mens. 
cere 
OL23h| Hast Coastiot Mindoro! =seeessceer soot eter sae ee eee eee 283) Slee oscee 4 
5124 |..... GOs ek sek ne eee eee te eae arg eee eee eee eee 281" |: 22ers ae 3 
9548 || -Palawani Passages Ste seat sy eae eC eee ok a eee eae 375 56. 4 2 
93/3) Vicinity of Marinduque Islandi2ss- sss. 0s... ose ee eee eee eeee 338 51.8 4 
5407e| Vicinity of Dupon Baym leytessss-css es seeaeee ese ees seeeoee 5 oeeeeocens 2 
5410 | Between Cebu and Leyte-............ eae os asoee sic asascsbes 380) |2aoeoee 1 
5423") -Jolo:Sea(Sulu: Sea) en shee cee cee oe eee ane ney eee 508 49.8 4 
DAZ esos 0 (ee ee eg ee eR Pap de Kees Ae Any el pa oe as 495 | 49.4 1 
5492 | Between Leyte and) Mindansocts#:uohe. Shoes caren. enim 735 52.3 5 
BIOS. 22S MOL Sas tetctas ae so eicic tie ca eee oe ee eee ee etree ey 678 53.3 6 
5512 | V ‘icinity ofmorthern:Mindanao es: 222226 cease eee ee once 445 52.8 3 
Solsuleaeee Vi ee ret etn s ts aE eee Bern ie eerste 505 52.8 1 
5528 | Between Siquijor and Bohol...... Se ep a era e een aes ose 439 53.3 1 
dds8))| Bebween Cebuland!Siquijons 4-52. 5-2 see aaee eee nee een 432 53.3 1 
00865 Vicinityionel biku) bays 6 Olneosesne. de eeee eee seen see sere 347 44 1 
DOB TA Soe is AO Sen She an eet ee be ae PERRO he Gern rene eee mee eS 415 42.3 2 
5646} Buton Senile. s.5.00e | n become een nae eae 456) '|jcne ences 2 
DO48 His o eee GO. J emeee eco we: aoe ee ee. ene fire ee 559 39. 2 1 
The range of depth and bottom temperature inhabited by this spe- 
cies is remarkably wide for a Macrouroid fish of tropical seas. 
We can detect no differences of importance among these specimens. 
nor between them and Japanese material. 
Genus CETONURUS Giinther. 
74. CETONURUS ROBUSTUS Gilbert and Hubbs. 
Cetonurus robustus GILBERT and Husss, Proc. U. S. Nat. Mus., vol. 51, 
ADLGE sp: ZO ple Ae hiss 2: 
List of stations. 
Depth | Bottom | Number 
abs one Locality. in tempera- | of speci- 
: fathoms. ture. mens. 
Sa 
5601) |\\Gulftiof Domini | 'Celebes: == scneqtscssns con aseee nee ee Senses OS'S cone eee 1 
5631.) South: of Pationte Strait: = 222 222s son soe cee oe eee SO0OUIS = seems 1 
563 2ico GO: i ee ee re ea, ee ee ee a ea S45. Sc2 aero 4 
d6o1. | ‘GulfiofiBont;:Celebes)e 2 2 oe echo pete eee ence eae ee 7 38.7 1 
5654 |..... Oe Nore Sot N Se eicis a ea Oe ee eae ee 525 41.2 1 
— ' 
Between these East Indian specimens and the type material from 
Japan no specific differences can be detected. 
