OPHIURID/E. 
449 
treated as specifically distinct ; A. hinhergi and appressaj Cape, pntagonica^ 
Magellan Straits, Uneatay Azores, 15 fatli., ^om, Anguilla, 280 fath., 
Tortola, 10 fath., are described as new; A. pidchella, Lym-jSs-^-l. gracillimay 
Stmps.?, St. Barthdlemy, 18 fath.; Ophiocnidella is introduced as a subgeneric 
denomination for a section of Amphipholis (A. scahrinscula) : Ljungman, 1 . c. 
pp. G32-G52 & G44-G49. A. septa is redescribed after an adult specimen from 
St. Thomas, A. kochty sp. n., Wladiwostok, Mantchuria ; A. andreePy sp. n., 
Java {A. depresstty Ljgm., figured for comparison) ; Ophiostigma formosa^ 
sp. n., Formosa Channel, 17 fath. (the genus hitherto only known from the 
American shores) : LOtken, 1. c. (16) pp. 77-90, pis. 1 & 2, figs. 1-3, 6 & 6. 
Ophiaregmay g. n., Sars, Forh. Selsk. Chr. 1872, p. 113, differs from Am- 
phipholis in its total want of genital slits ; A, abyssortimy sp. n. off' Storeggen, 
Norway, 400 fath. 
Ophiocomin(B and OphiotrichineB. 
Ophiocoma raschiy sp. n., Sars, 1. c. p. 109, Storeggen, 80-l(X) fath. 
The distinction of Ophiomazay Lym., from Ophiomcmis is contested by 
Liitken t I c. pp. 102 k 103. 
Ophiothriv galateoiy sp. n., Nicobar ; O. cchmatn, IS-macidatay and fragilii 
live in the Mediterranean : Liitken, /. c. pp. 90, 101. From the northern 
species Ljungman (13, pp. G22-G2G) further separates O. pcntaphyllumy Penn., 
British Channel, France, macidatay Josephina bank, 110-120 fath., riihray 
Azores, 15 fath., lusitanica (pentagona, d. Ch.), Setubal (littoral) (spp. nn.). 
[That one species should be peculiar to the British and another to the Scandi- 
navian shores of the North Sea is against all zoogeographical analogy.] 
O. pallida, sp. n., Anguilla, 180 fath., and O. sucnsofii, var. abyssicola, ibid., 
100-200 fath. (13, pp. 62G, 627). 
Ophiothela isidicola, sp. n., JJitken, 1. c. p. 92, f. 4, Formosa Channel, on 
Parisis laxa ; Ophiothela also occurs in Japan and Bourbon. 
Euryalinee, 
Quay, Ann. N. IT. (4) x. p. 71, urges the restitution of Laspalia and 
Natalia (1840) for Asteroschema and Astcroporpa, Orst. & Ltk. (1859). 
Laspalia {Asteroschema) sulcata, sp. n., Ljungman, Anguilla (200-300 fath.), 
13, p. G37. 
Astcrophyton agassizi, St., Greenland, in the stomach of the shark ; A, eu- 
cjicmis, M. Tr., down to Cape Cod; A. muricatum, var. with clavato disk- 
spines : Liitken, 1. c. pp. 95 & 90. Lyman notices A. arhorcsccns, Link., from 
Guadeloupe, and describes Asteromorphn Icevis, sp. n. (also noticed by Liitken, 
with notes on the oral armature of Asteroschema, 1 5, pp. 9G-98. Asteroschema 
rousseauiy Michel, from Bourbon, = Astei'omorpha steenstrupi, Ltk. (which 
should stand). 
Trichaster isidis, Buch., from Guadeloupe, is the type of a new genus, the 
fifth of the unbranched Euryalince : Asterocnida, “ Disk divided into 10 radial 
lobes by furrows, one for each brachial and interbrachial area; its dorsal 
surface beset with grains and strong papillae. Arms bifurcated several times, 
as in Trichaster. Disk and arms invested by a dermal mosaic of flat granules : 
arm-joints indicated by small cresls of grains, often supporting microscopical 
