414 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 
ous serrations on the dorsal spine; much larger eye, and blunter 
head; and from C. macrolophus; in the larger eye, which is equal to 
the length of the blunter snout, instead of being much smaller, as 
in both adult (C. macrolophus) and young (C. lophotes), of the 
Indian Ocean species. 
C. awae, of Japan, a member of the same group, appears to be a 
very distinct species, although the large type of that species prob- 
ably differs widely from smaller specimens, judging from the known 
changes in C. marginatus and C. microps. It is possible that awae 
is based on a very large example of marginatus. 
C’. semiscaber is also closely related to the following species, C. 
tydemani, another member of the same group. 
Table of measurements in hundredths of length to anus. 
Type. Paratypes. 
Albatross: Station ¥2 3-6 Bec) Re ee ee ee ei aes 5215 5215 5534 
Totallencthyintirim: se soe oo ele sere oes eee a a se ee ee 251 213 1110 
Jeane thitoanus in mink oh) 27 eee ee ee ee ee 2 eee 74 65 28 
1 Ei a fa rao} Caos: (6 eRe | Sea niet Ne ER eth 3 STC wren ee ech e OS 66 66 69 
eneth: of onoitl 2 aes 5. eae Pe eae ae Sa pee pe eae eee 18.5 18 19 
Width of interorbitall-s~ 02 5 See Se ae ee a 13 14 15 
Width of suborbitale: ss oie es ee a Ry ee oa ae ae eee se eee Sees 8 7 “et 
Orbit of preopercle.2 2 2.0 6n eee eae (ee ee eee ee a ee ee 23 24 31 
Leneth of snouts. 6. 2. eee See at ohn I ch pte ne re 18.5 TS ites: oe ee 
Gength fof- upper jewel sb fs.s.22k) cee aie coe Hoe cer ee eee 20 20 21 
Leng thofbarbel: 2a: osn68 Se heath Oe eee ee ae oo en ea ee 6 7 9 
Depth: of, DOdye: nts = 2 cee ee ee Se Ee ee ee ee 49 55 46 
Width fof bodies: 252252. SF oe SRE Se coe eet er aa ee ST ae Se 27 27 30 
ANIUSi(O VOUtralss aoe aye ee eee ee SRE O RI A eee, San Se oot a 29 30 x 31 
Mentral toisthmusa222 . 5 2.22 3 bs oe ee ee Le eee eae 29 27 27 
Heichi of second dorsal: spine’ =) a a er ne ae 78 88)> | eee 
Height, of thirdsdorsalapaye so. Foe yee a we ees a er el eae a D200 HWisct hectare ee ne 
Heneth: of base.oMfirstid orsal seeks eee eee eee rs een es een 20 21.5 19 
Lenpthiof: pestoral= “$7 8-5 lai ig ete ieee Pee el ee ee eee bia 39 AQ TOF. ae sees 
Length of outercventralira yah con a cee eee eee eta een eee 62 63 51 
Leneth of'secondaventraliray sss: vie os Se Set oe ees ed 26 26 one eee 
1 A small pseudocaudal developed. 
(semiscaber, in reference to the basal armature of the dorsal spine. ) 
15. CORYPHAENOIDES TYDEMANI (Weber). 
Macrurus tydemani Wersrr, Fische der Siboga-Expedition, 1913, p. 158, 
pl. 4, fig..6. 
Four specimens of this fine species were dredged at A/batross station 
5648, in Buton Strait, near Celebes, at a depth of 559 fathoms; 
bottom temperature, 39.2° F. 
There is included a complete description of our material for com- 
parison with C. semiscaber and other related species. 
Fin-rays—first dorsal, II, 9 or 10; pectorals, 20 to 22; ventrals, 
8 (S—9 in one). 
The shape of the body and the course of the contours being simi- 
lar in all respects to those of C. semiscaber, a repetition of the de- 
scription seems unnecessary. 
1See the note after the description of the next species. 
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