264 REPORT OF THE COMMISSIONER OF FISH AND FISHERIES. 
Table of hests. 
Sag Mingaz- : Latest synonymy by Dr. Common 
Leydig. zini.t Perugia. Theodore-ill.” names. 
Mustelus#|f-sa02. 2-250 > 22-6 se: Galeus'spas.seo-— eee eee 
Mustelus levis ..... Galeus mustelus............- Smooth dog- 
fish. 
Sleygbbiremn Cann Fs Bepeeessece d[ss-oceSecsnoasearcnae Seylliorhinus canicula L ....| Large-spotted 
dogfish. 
DSC VU ee [bea as ase on ats eer Seylliorhinus sp-............- 
Scyllium stellare....! Seylliorhinus stellaris ....---. 
Prighimnusieee sass <1 o2, == Pristiurus melanostomus Bon 
Spinax vulgaris ..|-........... Acanthias vulgaris.) Squalus acanthias L..-....... Spiny dogfish. 
Siigiimnes Qureshi) Ie ops cen ssa Sscdoossoec ber eeeeeene Squatina squatina L..-...... Angel-fish. 
SUITE || Lo osdesepsasoneaporistc Squatina sp -.-.-...........- 
Torpedo narke.-.,.|------.---.- | Torpedo narce....-- Torpedo torpedo Gmel. -| Electric ray. 
Torpedo -. Torpedoysp! sJoae-e eee 
Torpedo marmorata 
[Raja batis |] -----]------------]----------- 2+ +2 ----02-| 0-2-2 es - 
-| Raja sp --| Skate. 
Raja clavata. sal MRajarclawataeccseece cess eeee Thornback. 
ALANS Sh IBS s159 702 5es5 a0 5eusesuc Dasyatis Spe-seeseess-acse ce Stingray. 
Myliobatis aquila...| Cephaleutherus aquila.....-- Eagle ray. 
* By an evident misprint (rinvenne instead of rinvenni; ‘‘he found” instead of ‘I found”’) Perugia 
(Boll. Scientif., Pavia, 1890, x11, p. 136) states that Leydig, instead of Perugia himself, found this form 
in the series of hosts examined by Perugia. 
+Mingazzini gives nothing but the generic name of the host. As there is nothing to indicate the 
identity of the species of hosts with those examined by the other authors, they are noted separately. 
+ This species I regard as distinct (see p. 261). 
95. Chloromyxum fluviatile Thélohan, 1892. PI. 39, fig. 4. 
Bull. Soc. philomat. Paris, Iv, pp. 173, 176, fig. 2; ib., Gurley, 1893, Bull. 
U.S. Fish Com. for 1891, x1, p. 418; ib., Braun, 1893, Centralbl. f. Bakt. u. 
Parasitenkde, xiv, pp. 738, 739; ib., Braun, 1894, Centralbl. f. Bakt. u. Para- 
sitenkde, Xv, p. 87. 
Cyst none. 
Myzxosporidium.—The ectoplasm emits lobed pseudopodie. Endo- 
plasm, when young, colorless; when older, yellow; color appearing not 
to be located in special spheres. 
Spore formation.— Number of spores formed in each myxosporidium 
indefinite. 
Spore.—Nearly regularly spherical; size about 5 to 74; shell bivalve; 
bearing small, often difficultly visible, spines; ridge present; capsules 
4; sporoplasm nonvacuolate. 
Habitat.—Gall bladder of Leuciscus (Squalius) cephalus L. 
This species is apparently rather rare; seen only twice; it is nearly 
related to C. leydigtt (Thélohan). 
96. Chloromyxum mucronatum Gurley, 1893. PI. 39, figs. 5, 6. 
(Psorosperm of Gadus lota Lieberkiihn, 1854, Miiller’s Archiv., pp. 352-3, 
368, pl. 14, figs. 5,6; ib., Lieberkiihn, 1854, Bull. Acad. Roy. Belg., x x1, pt. 2, 
p. 22, name only; ib., Leuckart, 1879, Parasiten des Menschen, 2 ed., p. 248, 
fic. 99a; ib., Biitschli, 1882, Bronn’s Thier-Reich, I, pl. 38, fig.17; ib., Bal- 
biani, 1833, Journ. de Microgr., vu, pp. 201, 203, fig. 45; ib., Balbiani, 1884, 
Lécons sur les Sporozoaires, pp. 130, 133, fig. 41;1 ib., Leuckart, 1886, Para- 
sites of Man, 2 ed., p. 197, fig. 99a; ib., Koch, 1887, Encyklop. d. gesammt. 
Thierheilkde u. Thierzucht, rv, p. 94, fig. 668, 3.) 
Chloromyxum mucronatum, Bull. U.S. Fish. Com. for 1891, x1, p. 419; ib., Braun, 
1894, Centralbl. f. Bakt. u. Parasitenkde, Xv, p. 87. 
1 See also below, under C., elegans (p. 266). 
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