354 
BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 
Table of measurements in hundredths of length to anus. 
Type Paratypes. 
Albatross:Station2 =<. 34.20sc cn ee eR eee ee eee 5582 5648 5467 5274 
Total length in:mm....-.. 2. 2555 ee eee eee oe oe eee 390 307+ 285+ 232 
Length toranus in mMmcecs sore seer tee eae oe eee eee eee ee 105 90 93 66 
Length of héad. - 2222. see Tee eee oe eee ee 61 66. "402-40 sce 68 
Length of orbit. 5.2225 ae eee So eee pce eebions eee aeee ote 12 12h =o-eeeenee 13 
Width.of interorbital’c. 3525-5 eee ate caine ere acta 21 22>» Sos eS eee 23 
Width of Suborbitial. 2: s- 36 eae acne cee aeeacien se 8 {* fetal (Se eye: 10 
Orbit to: preopercles 62 sets tects sacs eee eee eee ments 31 33 30.5 | 34 
Length ‘of snoutis i532 222 S eae eee ee eee eee reenter 20 BOB beac ere 20 
Lengthvobuppentiawen me cescne eto eetee es Ieee eres pines 34. BY peal Sepesohe 38 
Depth OM Dod ycceco see oo ola ae eoinaeeeaiee ene yam ae te 44 50M ge leeeer ames 150 
Width rot body aes es oy ee ae” ea 21 20 20.5 20 
ANUS TOnyemtRall Saat ee ane ae yee ee he ao re eee 38 39 4 37 
Ventral to‘endofpectoraliarchsese. 22200)» oncee > one eee 28 29 DON hes eee 
Heieht of second! dorsalispinese. saceas come -e oe eee ae eee Ri Ee) ee ee aee Ale Si See Seren 
ibengthiof first: dorsalibasetesesue- ease eo ee eee ee eee 20. 20.5 18. = 20 
Lengthrof first pectoralinay ses seesee sen eee ee eee ill 10.5 ihe), 11 
Length of'second pectoralirays-seese sae sce de. Seen -egeee: | panes ener SU sbi ieee sees sok eee 
Scales© above datoral lines ssc ee a ay ek eee epee 6) eG) Qa ees 
Soft:rays “first dorsalics ese soacco es ee eo oe ete eee 9 8 8 8 
Ventral rays oso ear a a ee met tt a ee ee ae 09-9 9-9 9-9 9-8 
Pectoral: Tays: <<) csscesne sie oe oso See oes ates Deseo ee 19-17 18-17 15-15 See eee 
Gill-rakers outer arch (eft) sos. ae ete eee cee eee 6+20 6+20 6+19 | 5+21 
Gill-rakers, outer archi(right) S22 gee. seek eee ee AE im Sie 6+22 6+19 64+19 | 6+20 
Length-eill-ra kers.. tse sje ctauecameice oe sels one eee ce eter 7 8 Sirs 9.5 
1 Approximate. 
2 Probably 6. 
(spongiceps, in reference to the spongy nature of the head.) 
Subgenus MELANOBRANCHUS Regan. 
2. BATHYGADUS FILAMENTOSUS (Smith and Radcliffe). 
Regania filamentosa.SM1TH and RADCLIFFE, Proc: 
1912, py 107, pl. 22, fig. 2. 
may 
Nat. Mus., 
vol. 43, 
Bathygadus dubiosus WrBerR, Die Fische der Siboga-Expedition, May, 1913, 
p. Liss plo; eo. 
Bath ygadus filamentosus WrBER, Die Fische der Siboga-Expedition, p. 672. 
List of stations. 
Albatross 
station. Locality. 
5587 
5619 
5650 | Gulf of Boni, 
Off east! coast of British North Borneo ............---------- 
Moluccas. Passages. <caageeus sews daa eens oa a oclee cists oes ere ae 
Depth in 
fathoms. | 
415 
435 
540 
Bottom | Number 
tempera- | of speci- 
ture. mens. 
| 
FS: 
42.3 2 
Len eee 1 
40.1 it 
1 The type station was wrongly located in the original description; it is off the east, not the west, coast 
of Borneo. 
In form, in the breadth and softness of the head, in the size of the 
eye, in the development of the sensory canal system, and in the 
strength of the opercular spines, this species occupies a position inter- 
mediate between the species of the B. cottoides type, on the one 
hand, and those species with comparatively firm heads and large 
eyes on the other hand. 
Our measurement of the interorbital differs a little from that 
given in the original description. 
As we measure, the orbit is con- 
