478 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



TRBMATODES. 



5. Dinlomiim hixplrlum AbiMjsiard. Intestine. [PI. xxix, figs. .TJl-.SSS.] 



Taken by the schooner (IniiiijiiiK, soutli of Martlias Vineyard, in 65 to M fatlioms, .Iiilv 30, 1900; 

 15. Collecteil Ijy Mr. C. \V. Stone. Tliese ilistome.s are from ?. mm. to (J mm. in jcn'.'tli. The necks are 

 (len.^ely clotheil witli larjre, coarse spines, ami the body covered with sliort spines; acetabnlum mncli 

 larger tlian oral sncker. Dimensirms in millimeters of a specimen in jrlycorine somewhat compressed: 

 Leiifrth, 4.2f>; dianiet<-r of oral sucker, 0.17; diameter of acetabnlum, 0.45; breadth of body, middle, 

 l.Ki; diameter of anterior testis, 0.5; len}.'th of posterior testis 0.77, breadth 0.5; ovum, O.OSli and 

 0.0.55 mm. in the [wo priiici|)al diameters. So far as these specimens have been studied, they agree 

 closely with this species, e.\cept that the neck is flattened and tapers gradually but uniformly to the 

 bluntly rouMde<! anterior end, instead of being dilated at its nuddle part. 



TJrophycis chuss ( P/ii/ci.s c/ii/.w). Hake. 



Shrimps and amphipods noteil in alimentary canal of one taken in :iO fathoms off (Jay Head, 

 .\ugust 5, ISitO. Small crustaceans ami lenses of small fish in alimentary canals of four young hake 

 lakeii in Katama Hay, .\ugust :>0. 1H09. 



AlANXnoClirilAl.A. 



1. Ecliitiorhiirirhu.f iicnx Kudi'lplii. Intestine. See 't, p. 525, etc. .\ug. 5, ISiMI, 1!" specimens. 



These specimens are smaller and more slender than examples from nthrr hosts, e. g., the tlnunders, 

 but they appear to agree in all csscMtial jiarticulars with this species. 



NEMATODES. 



2. Immature nematodes { Ancarix) . Peritoneum. 



A small lot belonging to the U. S. National Museum collection, collected by the V. S. Kish 

 CommLssioii in I.SS7, agree with those mentioned under /'/i//ci.v tmtiis No. 2. .\lso foun<l Augu.sl 5, 

 1899, numerous; and .\ugust 2, I9(M). [PI. vi, figs. .53, 5-4.] M.nliiMl with No. 2 wuAvr iMpholaliluB 

 chama:leonticcj>s and No. 2 under I'liridiclithija uhhmrjnx. 



CESTOnES. 



3. BJiynchoholhrhwi. Kncysted on peritoneum. I. ]>. 79<!. Alsn found .\ug. 5, 1899. 



TItK.MArOllES. 



4. Dixli»iium ocrcatinii Molin. Intestine. See 7, p. 288, jil. .\x.\v, tigs. 16-24. .\ug. 5, 1,S99; numerous. 



The.se agree fairly well with this species. The oral sucker exceeds the acetabulum slightly in the 

 preserved six^cimens, which are contracted and mea.sure 1 nnn. or less, excluding the appendix. Ova 

 0.024 and 0.014 in the two principal diameters. 



5. DMoinum appeiidiailiitiuii Hudolphi. Intestine. See 7, i>. 2S9, pi, .vxxvi, tigs. 25, 26. 



Twenty-one ilistoines from two young bake, seiue<l in Katama I5ay, .\ugust 28, 1900, are to he 

 referred to this species. They were very active and v>riable in form. .\t rest the length is about 2.6 

 mm. Diameter of oral .sucker, 0.09 mm.; of acetabulum, 0.19 mm.; liody serrate, neck very short, 

 cirrus j«)uch Ix'hind acetabuhim; vitellaria, two and globular: ova, 0.024 and 0,010 mm, in the two 

 principal diameters. 



Enchelyopus cimbrius, Four-benrdol liurkliinj. 



But one specimen examined. This was taken in the trawl m-l in about .lO fathoms of water off 

 Gay Head, August 5, 1899. Shrimps, amphipod.s and a few small univalve molhisks in the alimentary 

 canal. 



.UANTHOIKI'MAI.A. 



1. Kchinorhynrhun arus\i\v\n\\A\\. Intestine. One female; airrees with this species in all essentials. 

 See 3, p. 525, etc. 



