236 Miscellaneous. 



alone, and that suddenly, as shown by " condition good," in the ex- 

 tract from my note-book. 



1 am. Sir, jonr obedient servant, 



Matthew Moggridge. 



Descriptions of new Entophyta groicing within Animals. 

 By Joseph Leidy, M.U. 



EccRiNA. (Gen. nov.) Characters same as Enterobrus*, except 

 that it divides into numerous cells at the free extremity. 



Eccrina longa. Filaments long and delicate, liyahne, or fanitly 

 brownish, at first forming a shnple curve, or a single spiral turn, and 

 then passing in a straight line to the free extremity. Teduncle very 

 short. Frond cell usually filled with globules, and a few granules, 

 except at free end, where it is usually filled with granules to the ex- 

 clusion of the globules. End cells as many as thirty in number, at 

 first consisting of elongated divisions of the frond cell contents, but 

 becoming distinct elliptical cells, from two to three times longer than 

 the breadth ; contents usually granular, occasionally with a few glo- 

 bules. End cells finally separating from the parent. Length from 

 three to seven hues, breadth 1 -2000th to the 1-5 17th in., not usually 

 corresponding to the length. End cells 1-51 7th to the 1 -357th in. 

 in length. 



Hob. Grows in very great profusion from the mucous membrane 

 of the posterior part of the intestine o? Pofydesmus viryiniensis. 



[Dr. Leidy exhibited to the Academy a preserved fragment of mu- 

 cous membrane, with filaments of this species six lines in length 



growing from it.] /. • 



Eccrina moniliformis. Filaments hyaline or yellowish, formmg a 

 double or treble spiral. Peduncle short. Frond cell filled with glo- 

 bules and granules, except towards its free extremity, where it is filled 

 with granular matter divided into distinct and separate masses, usually 

 a little shorter than broad, and containing each a globular nucleolated 

 nucleus. Divisions progressively passing towards the end into globular 

 cells with granular contents. Divisions and globular cells from twenty 

 to fifty in immber. 



Length from 1 to 1^ line, breadth average 1-1 500th m. Divisions 

 of frond cell contents and globular cells from l-1875th to l-1500th in. 

 Nucleus of cells l-3750th in. 



Hab. Grows in moderate quantity from the mucous membrane of 

 the intestine of 50 per cent, of Po/ydesmiis granulatus. 



Arthromitus nitidus. Filaments very long, hyaline, grow usually 

 in twos or fours, pointed at the origin, rounded at the termination. 

 Articuh very distinct, length eipial to the breadth of the filament. 

 SporuU formed within the articuli, solitary, usually obUque, oval, 

 amorphous. 



Length 1 line by l-5000th in. broad. Spores 1-7-11 1th m. long, 

 by l-r2-500th in. "broad. 

 " Hab. Grows in considerable quantity with a profusion of young of 



* Ann. Nat. Hist. Jan. 1850. 



