42fi BULLKTIN OF THK UNITED STATKS FISH COMMISSION. 



2. A f II 111 hoihrll II.S tiklifix Untoi\. Stomach. 7, pp. 270, 271, 30S, pi. xxxiii, fijrs. lir.-119. 18f»9, fr.mi 



one host, 3 in pit." iif inucoiis nu-iiihrane nl stomach. Ova, kept in sea water, which on 

 Au^u.-it 20 showed only early stages of cell division, on August 23 contained active embryos. 



CESTODh^i. 



3. Oriiffinaloholhriiiiii jiiiiiliiiii Linton. Spiral valve. 5, p. 444, pi. .\xxiii, figs. 7, 8. 



4. TliiixiiiiDifiihiiliim n-ixjiiiiii Linton. Sj.iral valve. 1 [Phiilloltiithrlmii llijimiiiM-pphalum'], pp. 464—468, 



pi. 11, tigs. 1-12. a, j.p. 82.3-.S24. 3, pp. .•i43-.5.3t>, pis. i.xi-Lxvii. 5, p. 448. 7, p. 271. See 



also '1, p. 792, 1>1. L.x 1 1, figs. 10-11, for mention of larva from the sipiid. Aug. 19, 1899; from 



one host, 113, large anil small. 

 .1. .Uoiioriigiiia s\). Spiral valve. 7, |). 271. See No. 3 under /.siinix <W(iyi. 

 6. THiiirln/nrhii.i hiiutoTli-dTtel)'. Stomach. 4, p. ,S13-81."), jil. lxviii, tigs. l-(i. 7, ji. 271. Aug. 19. 



1899, several attached to and penetrating the .-tomach wall. 



Carcharinus milberti, Ulne Shark. 

 (Incorrectly referreil to Priimiii-e ijlitiici in iiajier cited below.) 



FOOD. 



Two small specimens, 41 feet long, taken .Vugust 5, 1889. Stomachs contained half-<ligested fish 

 (bonito). A s|jecimen taken off (Jay Head by the schooner (Imiiipiix, July .30, 1900, and examined by 

 Mr. C. \V. Stone, was reportecl to have had fish of ilifferent kinds in the stomach, one of which wa-s a 

 flounder. This specimen measured 9} feet. 



NKNUTODHS. 



1. fiiiinnluri' iu'iniitiiili->>. Spiral valve. Kmliryonic culicle still jiartly ailhering. Specimens probably 



introduced with food, .July 30, 1900. 



CKSTont-S. 



2. Aiidiohiilltritiinhu-iiikiliim Linton. Spiral valve. 2, pi>. 7.'i4-7.i9, )il. iii. figs. KV-l*!; ]il. iv, figs. 1-3. 



5, p. 439. July 30, 1900, 4, very small. 



3. ( 'niststnJmthrhim ariguxtuin Linton. [Or;ii/m<itoliiillirliiiii iintjuslum lAnton.l Spiral valve. I,pp. 4(i.8- 



469, pi. Ill, figs. 1-3. a, pp. 796-^799, \>\. vii, fig. 3. 5, p. 443. 



4. Monorygniii f]). Spiral valve. July .30, 1900, 27, small. See remarks on Xo. 3, under /(rwrHJi </<'i-oi/i. 



5. Phoreiiihnthriiiiii liisiuiii Linton. I, pp. 474-476, pi. iv, fig«. 24-29. S, pp. S19-S20. .I, ).. 447. 



7, pp. 272-273. 



6. I'Uiliihnlhrinm ptirrum sp. nov. Spiral valve, July .30, 1900, 2.'>.3. 



Probably the same species mentioned in 7, \>. 3(K), pi. xxxii, figs. 98, i«1. The hooks are 

 identical and should have been selected as a generic character. The bothriaare provided w ith two costie 

 on the posterior end and an auxiliary sucker in front of hooks. Neck elongated and di^nsely .spinoiw. 

 The bothria in lhe.se .specimens differ from any of the genus seen before in that they are trough-shape, 

 the head thus bearing a strong superficial resend)lance to riioreiobutlirium. The ripe segment-s are 

 elliptical and loosely attached, nuikinga moniliform chain. Longe.etepecimens, 10 to 1.5 nun. 



Dimensions of one of the larger specimens in millimeters: length, 1.5; length of head, 0.54; breadth 

 of head in front, 0.41; diameter of neck immediately behind the head, 0.11; length of la-st segment, 

 0.67; breadth, 0.47. The first ilistinct ."egment.s beg-.ui abfmt 5 nun. bai'k of head. 



7. Iiliiiiiili(ih(ithriiiiii liiiiil.ijiiiir l,\i)tim. S|iiral valve, a, pji. 837-S.3^^, pi. xii, figs. 1,2. 3, pp. 448-449, 



pi. x.vxiv, fig. 8. 



Carcharinus obscurus {('iirch<ii-iiis til,.iriirii.i}, l>ii.ikg .Shark: 

 Foon. 

 Fish, among w lii<h iueuha»leii and sijueteague have Ix^en recognized. The stomach of a sixiimen 

 examined -Xugust 1, 1899, eontiiined a large fpiantity of oil in globular nia.sses abnut the size ol average 

 peas. All the specimens examined in 1899 and 1900 were small — 41 to n feet. 



ACANTIHK KI'UAI.A. 



1. JCihiiiorhiinchim iiyilif Kudoljihi. Spiral val\e. I, pp. 41K)— 492, pi. v, figs. 1-6. 



