OPHIUROIDEA. (IV, E.) 
Eel an. 77 
(162) p. 165: restricted; Verrill (244) pp. 36, 41. 0. cisperu, 
variations from the type in Havana specimens ; Verrill (244) p. 44. 
0. bairdi, a specimen of this Atlantic sp., from 23° 59' N., 108° 40' W., 
995 fms., additions to Lyman’s account; Lutken & Mortensen (162) 
p. 177, pi. xviii. 0. bidentata ; Bidenkap (37) p. 100, and (38) p. 111. 
0. composita as in (169) Zool. Rec. 1897; Koehler (142) p. 59, pis. 
viii, ix. 0. contigua, n. sp., 4° 3' X., 81° 31' W., 899 fms. (p. 173, 
pis. xvi, xvii); 0. cosmica , specimens from E. Pacific, showing slight 
variations fr. Lyman’s type (p. 166, pi. xv); 0. costata , n. sp., 7° 6' N., 
80° 34' W., 695 fms., and other stations of ‘Albatross,’ rather nearly 
related to 0. discoidea (p. 172, pis. xvi, xvii): Lutken & Mortensen 
(162). 0. duplex as in (169) Zool. Rec. 1897 (p. 60, pis. viii & ix); 
0. gratiosa, ditto (p. 56, pis. viii & ix) : Koehler (142). 0. hirtci, 
n. sp., 21° 19' X., 106° 24' W., 680 fms., and 23° 16' X., 107° 31' W., 
852 fms.; Lutken & Mortensen (162) p. 174, pi. xviii. 0. hirsuta, 
vide sub 0. sertata, Ophiopristis. 0. inconspicua , n. sp., 6° 35' N., 
81° 44' W., 782 fms., and other stations of ‘Albatross,’ also young 
of this or of 0. pentacrinus ; Lutken & Mortensen (162) p. 168, 
pi. xv. 0. lineolata , vide sub Ophiopristis. 0. moniliformis , n. sp., 
16° 32' X., 99° 48' W., 493 fms., and other stations of ‘Albatross’ 
(p. 171, pi. xvi); 0. normani , specimens fr. E. Pacific, showing slight 
differences fr. Lyman’s type (p. 170, pi. xvi): Lutken & Mortensen 
(162). 0. ( Ophialcaea ) nuttingi , n. sp., 200 fms. off Havana ; Verrill 
(244) pp. 43, 46, pis. i, viii. 0. pacifica , n. sp., 1° 7' X., 80° 21' W., 
1573 fms. (p. 166, pis. xv, xvi); 0. paucispina , n. sp., 6° 10' X., 
83° 6' W., 1471 fms., and other stations of ‘Albatross,’ nearly related 
to 0. bartletti (p. 175, pi. xviii): Lutken & Mortensen (162). 0. pen- 
tagona as in (169) Zool. Rec. 1897, added locality, C. Bluff ; Koehler 
( 142) p. 53, pi. iv. 0. rosea , evidence for bipolarity; Thompson (230) 
p. 321. 0. sertata , vide sub Ophiopristis. 0. sociabilis as in (169) 
Zool. Rec. 1897; Koehler (142) p. 58, pis. x, xi. 0. spinifera , n. sp., 
7° 9' X., 81° 8' W., 546 fms., and 7° 15' X., 79° 36' W., 1020 fms.; 
Lutken & Mortensen (162) p. 169, pis. xvi, xvii. 0. stellata ; Verrill 
( 244) p. 45. 0. vestita as in (169) Zool. Rec. 1897; Koehler (142) 
p. 54, pi. iii. 0. vivipara , 3 post-larval growth-stages descr. in 
detail; Ludwig (159) p. 232 : measurements, granules of disc, spicules 
in bursa walls, arm-spines hollow, and other features compared with 
var. kerguelensis , the validity of which is doubted; Ludwig (157) 
p. 13. 0. vorax as in (169) Zool. Rec. 1897 ; Koehler (142) p. 62, 
pi. vii. 
Ophiacanthella , n. g., with genotype 0. troscheli (Lym.); Verrill (244) 
pp. 39, 43. 
Ophiacanthidae, n. fam . — Ophiacanthinae of Ljungman and Lutken, with 
analytical table of genera and species; Verrill (244) p. 34. 
Ophiactis asperula, colour, size, arm-spines, variation in dorsal spines, 
young on disc ; Ludwig (157) p. 6 : post-larval growth-stages com¬ 
pared with those of other Oph. and fully described with text-figg. ; 
Ludwig (159) p. 212. 0. balli, distribution, habitat, habits ; Allen 
(8) p. 470. 0. dispar , n. sp., Bahama Banks, perhaps a var. or adult 
of 0. krebsi ; Verrill (244) p. 31, pi. viii. 0. duplicata (Lym.), an 
Atlantic sp. now found in E. Pacific with slight differences ; Lutken 
& Mortensen (162) p. 142, pi. vi. 0. krebsi, maintained, but perhaps 
the ordinary specimens are young ; Verrill (244) p. 34. 0. kroyeri, 
post-larval growth-stages, fully described and compared with those 
of other Oph., with text-figg.; Ludwig (159) p. 223. 0. lorioli as 
in (169) Zool. Rec. 1897; Koehler (142), p. 41, pi. vi: referred to 
Amphiura ; Lutken & Mortensen (162) pp. 143, 207. 0. muelleri; 
Clark (56) p. 130: var. quinqueradia discussed; Verrill (244) 
1899. [Vol. xxxyi.] e 23 
