264 REPORT OF THE COMMISSIONEll OF FISH AND FISHERIES. 



Table of hosts. 



Lovilig.* 



Soy Ilium caiiiciiln 



JVIin^az- 

 ziiii.r 



Mustelns 



Scyllium.. 

 Priatiunis 



Spiuax vulgaris 



Siiuatiua iiiigchis .1 



Squatina . 

 Torpedo narke. 



Toriiedo . . 



[Kaja batis ;] 



Poriijiia. 



Mustelns licvis , 



Scyllium stolinro. . . . 

 Acantliiaa vulgaris. 



Torpedo iiarco . 



IJa.ja — 

 Trvgon . 



Torpedo iiKiniiorata. 



Raja clcivata 



Myliobatis aquila. 



Latest syiionyiiiy by Dr. 

 Tlicodoi'c CJill. 



Galons sp 



Galons mustelns. 



pylliorhinus canicnla L 



Soylliorhinus sp 



Scylliorliinus stollaris 



I'ristinrusmelanostiuuii.sBon 



Squaliia acanthi. is L 



Squat iua snnatina I> 



Squat in a sj) 



Torpedo torjiedo Gniel. . .' 



Torpedo sp 



Torjiedo marmorata 



Kaja sp 



Kaja c.lavata 



Dasyatis sp 



Cepiialcutherns aquila . 



Common 

 names. 



Smooth dog- 



fi.sh. 

 Large-spotted 



dogfish. 



Spiny dogfish. 

 Angcl-tisb. 



Electric ray. 



Skate. 

 Tliornhack. 

 Stingray. 

 Eagle ray. 



* By an evident misprint (rinvenne instead of rinvenni; "lie found " insteiul of " I found ") Pcnigii 

 (IJoll. Scieutif., Pavia, 1890, xii, p. l.'JG) states that Leydig, instead of I'cnigia liimself, found tliis lonii 

 in the series of hosts examined by Perugia. 



tMiugazzini gives nothing but the generic name of the host. As there is nothing to indicate the 

 identity of the species of hosts with tliosc examined by the other authors, they are noted separately. 



; This sjiecies I regard as distinct (see p. 261). 



95. Chloromyxum fluviatile Thdlohau, 1892. PI. 39, (i;.;. 4. 



Bull. Soc. pliiloiiuit. Paris, iv, pp. 173, 17G, tig. 2; ii., Giirley, 1893, Bull. 

 U.S. Fish Com. for 1891, xi, p. 418; ib., Braun, 1893, Centralbl. f. Bakt. n. 

 Parasitenkde, xiv, pp. 738, 739 ; ib., Biauii, 1894, Ceiitralljl. f, Bakt. u. Para- 

 sitenkdc, xv, p. 87. 



Cyst none. 



Mtjxosporidium. — Tlie ectoplasm emits lol)ed pseudopoclije. Enclo- 

 l)lasm, wiien yoiiug, c;)U)iless; when oltlcr, yellow; color appearing not 

 to be located in special spheres. 



Spore formation.— ^mnher of spores formed in each myxosporidium 

 indefinite. 



Spore. — Nearly regularly spherical ; size about 5 to 7/<; shell bivalve ; 

 bearing small, often difficultly visible, spines; ridge present; capsules 

 4; sporoplasm noii vacuolate. 



Habitat. —G'dW bladder of Leuciscus [SquaUus) ccphalus L. 



Tliis species is apparently rather rare; seen only twice; it is nearly 

 related to C. leydigii (Tbelohan). 



96. Chloromyxum mucronatum fiurley, 1893. PI. 39, figs. 5,6. 



(Psor().s])cnii of Gadas lota Liebc-rkiihn, 18.>4, Miiller's 2Vrcliiv., ]ip. 352-3, 

 3G8, pi. 14, figs. 5, 6; ib., Lieberkiilm, 1854, Bull. Acad. Roy. Belg., xxi, pt. 2, 

 p. 22, name oiily; ?6., Leuckart, 1879, Parasi ten des Mensclieu, 2 od.,p.248, 

 fig. 99a; i?)., Biitschli, 1882, Bronn's Thier- Reich, i, pi. 38, fig. 17; i?>.. Bal- 

 biaui, 1883, Joiiru.de Microgr., vii, pp. 201, 203, fig. 45; it., Balbiaui, 1884, 

 L«S(;ons sur les Sporozoaires, pp. 130, 133, fig. 41; i ib., Leuckart, 1880, Para- 

 sites of Mau, 2 ed., p. 197, fig. 99«; ih., Koch, 1887, Eucyklop. d. gesauimt. 

 Thierheilkde u. Tliier/ucht, iv, p. 91, fig. 6(i8, 3.) 

 Chloromnriim uiiicroiiainm, Bull. U. !S. Fish. Coui. for 1891, XI, p. 419; ib., P.raun, 

 1894, C.'titralbl. f. Bakt. ii. Parasitcnkdo, xv, p. 87. 



1 See also below, under C. clcgans (p. 266). 



