476 BriLLKTIN Ofc' THE UNITED STATES FISH COMMISSION. 



The iulult.-' of lH)tli «'xes are more attenuate anteriorly than ]>o-teriorl\ , while the males are 

 shorter anil relatively stouter than the feniaU'.s. In the female from which the mea-uremeuts given 

 ahove were taken the upper lip wa.- uns-ynmietrieal, olilon;;, lenjrth 0.2 mm. ami hreadtli 0.22 

 mm. The tip of the tail u.-ually mucronate and minutely roufjlieneil or l)e.<et with short .spicules. 

 TIk' majority of si)ecimens in these lots were immature, anil but few males were noticed. The anal 

 liapillii- were but imperfectly made out; no po.stanal iiapilla- were noted in males examined; 23 or 24 

 l)reanal papillie on a side were counted, the posterior S or 10 small, ]ieiliceled, and capitate. The 

 remainder, including' a pair immediately in front of the anal apertiin- near the median line, are larger 

 and nut ca])itate. The nundiiT appears to he the same on each side. 



The smaller specimens were smooth; the lar-^er often transversely ru<;iise, es|>eciallv lowanl the 

 posterior end. The lateral al;e appear to Ix- an adult character. See under /'ii//»ii7i(h.< i/rcH.'--, No. 1. 

 and 7, pp. 283, 302, pi. xx.vviii, figs. IO.t-108. 



3. Immature nemutodcf (Axritrix) . .Serous covering of stomach, intestine, liver, etc. 



1 have examined nine lots of nematodes whidi came from capsules in various parts of the bo<ly 

 cavity of the cod. The greater part of the.se were collected by Mr. Vinal X. Ivlwards in the months 

 of November and Decendier, 1SS7. These specimens for the most part agree willi ilescrii)tions of 

 .Unirin capfiilurid; that is to say, they are immature ascarids. Specimens were found, however, which 

 were sulticiently developed to make it appear highly probable thai they are the voimg of .I.fmr/.v 

 cliivalu. The larger specimens range from 25 to 40 mm. in length, and fmmO.iito I.I mm. indiameter. 



4. ( 'uriillanus' glolioxii!! 'Acih-r. [I'l. xvii, fig. 20fi.] 



N'ine specimens from the cod, collected by .Mr. Vinal X. ICd wards in the months of N'ovend)er, 

 l)ej-end>er, 18S7, and .lamiary, 1 888, belong to this species. Dimensions in millimeters: Length, male 

 10."), female 15; diameter, male 0.4, female 0.35. Tail of female slender and prolonged 0.5 mm. Ix-yond 

 the anal aperture. Nengtii of male inpiilalory spine.s, 1.2 mm. 



5. Diholbrium rugosuin Kudolphi. Pyloric cteca. 2, pp. 750-754, pi. in, tigs. 7-10. 5, \k 431, ]il. 



XXVIII, tigs. 9, 10, and pi. \.\ix, iigs. 1— t. 



6. JihiiiirlioholhriKiii im/xiriiijiiiu- lAwton. I'eritoniinn. I. |i|i. 7!ili-S(l|, pi. i..\iv, Iigs. 0-12. See 2, pp. 



840-843, pi. xii, Iigs. (>-9. 



iueshtodes. 



7. Xll:srhia papiUum I^inton. <», ]>. 50S, ])l. xi., fig. 1-6. 



8. Ijitlumum riicliioti Cobbold (?). <i, pp. 5.38-539, pi. i.iii, figs. 3-7. 



Melanogrrammus eeg^lefinus, J/iiil<lork: 

 .\c.\NTnoci:i>ii.M..\. 



1. Krlilnnrhiincliti" iirux Kudolphi. See !J, |i. 525, etc. 



Found in two lots of entozoa from this ho.st, collected l>y Vinal N. Edwards in the months of 

 Xovend)er, lS8(i, and December, 1.S85, 10 in one, 4 in the other. The longest, a female, uieasure<I 45 

 mm.; tlii' shortest, a male, li mm. 



XEM.VTODES. 



2. Nemalodex. Immature. Kncapsnied on perilonenni. 



Three lots of encaiisuled nematodes from this host in U. 8. Nat. Mus. collection. These were 

 collected by V. N. Kd wards in Novend)er, 1881!, and Decemlx-r, 18.H5. Thes])ecimens in two of these lots 

 agree with those from the cod, and are probably the young of .l.vmn'.v rhirdtn. The longest is alMUit 30 

 mm. in length. The specimens in the third lot resemble Cobbold's .1. iirintlhoniuiliiln. Body nearly 

 filiform, but tajiers more anteriorly than posteriorly. Dimensions in ndllimeters: Ix'iiglli, 28; diameter 

 of body 0.75, of head 0.25; distance of anal ai)erture from po.sterior end, 0.3; length of <eso]>hagus, 4. 

 In acetic acid two systems of diagonal tibei-s were brought out. 



cESTonivs. 



3. liliiiiiclioliolhriiim tiiipiiri-ipiiif \AnUn\. I'lTilcHiciim. I. pp. 799-801, pi. i.xiv, figs. 9-12. 



