FISHES OF HAWAIIAN ISLANDS. ClOH 



The stomach contains remains of small .shiimp-like erustacca, and the eyes ami jaws of scjniils. 



Specimens were taken at the following stations: Nos. 3865, Pailolo C'hannel, i')6 fathoms; 3867, 

 Pailolo Channel, 284 to 290 fathoms; 3908, off the south coast of Oahu, 304 to 308 fathoms; 3910, off 

 the south coast of Oahu, 311 to 337 fathoms; 3911, off the soiilh coast nf Oahu, 334 to 337 fathoms; 

 3914, off the south coast of Oahu, 289 to 292 fathoms; :'>91l), off the south coast of Oahu, 299 to 330 

 fathoms; 3917, off the south coast of Oahu, 294 to 330 fathoms; 3918, off the south coast of Oahu, 257 

 to 294 fathoms; 3920, off the south coast of Oahu, 205 to 280 fathoms; 4025, vicinity of Kauai, 275 to 

 368 fathoms; 4084, off the south coast of Maui, 253 to 267 fathoms; 4085, off the south coast of Maui, 

 2(i7 to 283 fathoms; 4086, off tlie south coast of Maui, 283 to 308 fathoms; 4087, approach to Pailolo 

 Channel, 306 to 308 fathoms; 4088, approach to Pailolo Channel, 297 to 306 fathoms; 4089, approach 

 to Pailolo Channel, 297 to 304 fathoms; 4090, approach to Pailolo Channel, 304 to 308 fatlioms; 4097, 

 approach to Pailolo Channel, 286 fathoms; 4117, off the northwest coast of Oahu, 253 to 282 fathoms; 

 4122, off the southwest coast of Oahu, 192 to 352 fathoms; 4130, vicinity of Kauai, 283 to 309 fathoms; 

 4134, vicinity of Kauai, 225 to 334 fathoms. 

 Clialinura denamelas Gi\herl & Cramer, Proc. I'. S. N'nt. Mns., XIX. IS97, 130. pi. xi.v, lig. ■>. 



Optonurus atherodon I Jill lert & Cramer. 



One of the most abunilant species of Hawaiian ^[ai-rui-lils between 250 ami 400 fathoms. 



The original descri|]tion may be amemleil in the following respects: Ventral (ins with 9 or 10 

 rays; snout short, projecting hut little beyond mouth, its length contained 1.2 times in orbit, its pre- 

 oral portion 3 to 4 times in orbit; median rostral ridg<! ending freely between orbits, not joining a 

 transverse ridge, a delicate, thread-like cord connecting it with orbital margin; the small curved 

 ridges on occiput, mentioned in the description of the type, are delicate long spicules bridging the 

 excavated space between occiput and orbital margin; maxillary extending well behind middle of 

 orbit, to a vertical line intersecting eye midway between pupil and posterior border of orbit; posterior 

 margin of preopercle extending somewhat obliquely upwanl and forward; barbel abi;)ut 0.3 length of 

 orliital diameter; all the teeth in both jaws are distinctly arrow-sha])ed at fip; premaxillary villiform 

 band about 6 teeth wide; mandibular band consisting of an iinier irregular series of slightly enlarged 

 teeth, and an outer irregular series of smaller teeth, both .series terminating at the same point 

 laterally. 



Interspace between dor.sal tins 2.5 limes the base of anterior dorsal; pectorals 0.6 the length of 

 head; pyloric cieca 97 in the single specimen examined as to this point; a distinct, small, naked pit 

 between bases of ventral fins, separated by a narrow band of scales from the naked area around vent. 

 The food consists of shrimp-like Crustacea and squid. In life, the doi-sal region is lirighf )>lue. 



Taken at the following stations: Nos. .3867, Pailolo Channel, 284 to 290 fathoms; 3884, Pailolo 

 Channel, 284 to 290 fathoms; .3910, oii the south coast of Oahu, 311 to 337 fathoms; 3912, off the south 

 coast of Oahu, 310 to 334 fathoms; .3914, off the south coast of Oahu, 289 to 292 fathoms; 3917, off the 

 south coast of Oahu, 294 to 330 fathoms; 3918, off the south coast of Oahu, 257 to 294 fathoms; 3979, 

 vicinity of Binl Island, 222 to 387 fathoms; 3988, vicinity of Kauai, 165 to 469 fathoms; 4021, vi(-inity 

 of Kauai, 286 to 399 fathoms; 4025, vicinity of Kauai, 275 to 368 fathoms; 4041, off the west coast of 

 Hawaii, 253 to 382 fathoms; 4085, off the north coast of Maui, 267 to 283 fathoms; 4086, off the north 

 coast of Maui, 283 to 308 fathoms; 4087, off the north coast of .Maui, 306 to 308 fathoms; 4089, oU the 

 nortli coast of Maui, 297 to 304 fathoms; 4090, oft the north coast of Maui, 304 to 308 fathoms; 4091, off 

 the north coast of Maui, 306 to 308 fathoms; 4097, off the north coast of Maui, 286 fathoms; 4107, 

 Kaiwi Channel, 350 to 355 fatlioms; 4122, off the southwest coast of Oahu, 192 to .3.52 fathoms; 4123, off 

 the southwest coast of Oahu, 352 to 357 fathoms; 4130, vicinity of Kauai, 283 to 309 fathoms; 4137, 

 vicinity of Kauai, 411 to 476 fathoms; 4139, vicinity of Kauai, 339 to 512 fathoms. 

 Oiiltintirus atlierodon GiWn-rt & Cramer, Proc. V. S. Nat. Mus., XIX, 1W7, 1:11, pi. .xl.vi. fi^. 1. 



Hymenocephalus antrseus (iilbert & Cramer. 



The most abundant Macriirid about the Hawaiian Islands in depths of 250 to 350 fathoms, where 

 it occurs in company with (^hdlinura clrnomdas, Oplonnriiisdlhemddii, and Maldcorephalutt haimHenKis. It 

 is much smaller than either of these species, reaching a length of only 20 centimetei-s, and is charac- 

 terized by the excessive development of the sensory canals, whit'h are covered by a very delicate mem- 



