4 BULLETIN 41, UNITED STATES NATIONAL MUSEUM. 



13. 



1850. (iiKARO, Oharlks. Descriptions of Several New Species of EchiDodernis. 



Procceditiffs Boston Society XatiiraJ History, iii, 363-7. 18.50. 



Heliechinus, II. g 365 



Helitchinui Oonldi, n. s 365 



Key West, Florida. 



Melebosis, 11. g .365 



Melebonis Diirabilis, n. s - 365 



East India. 

 rsammechinvK asteroides, ii. ,s 366 



Kew Zoalaud. 

 Ecliinometra nigrina, n. » 366 



Cape Paliuas, "Western Africa, Dr. G. A. Perkins. 

 Eehinocyamus minimum, n. .s 367 



Mediterranean. 

 Schisaster lachesis, n'. a 368 



Gulf of Mexico, Texas .shore, J. Bartlett. 



14. 



1851. GiRARD, Charlk.-^. On a New American Saurian Reptile. 



rrnci'cd'nifis Ainrricaii Association for Adrancemint of Science, iv, 200-2. 1851. 



IIOLBROOKIA, II. g 200 



JJolbrook-ia )i}ac.iilata, ii. s 201 



Gx'aud Island. Platte River, Colorado, William Tappan. 



15. 



1851. GiRARD, Charles. A New Generic Type in the Class of Worms. 



Proceedings American Association for Advancement of Science, iv, 124. 1851. 



Phyllobranchus, n. g 124 



Phi/llohranchiiii HavencU, n. s 125 



Specimen found attached to the hody of a skate caught in Charleston Harbor, South Car- 

 olina, observed by Dr. Julian Ravenel. 



16. 



1851. GiUARD, Charij:.'!. An Essay on the Classification of Nemertes an<l Planarife, 

 precedetl l»y Some General Considerations on the Primary Divisions of the 

 Animal Kingdom. SiUinian's American Journal (>/'NciV»cc,xi, 2d series, 41, 1851. 

 Revised edition in Proceedings ^Imerican Association for Advancement of Science, 

 iv, 258, 1851. 



17. 



1851. (iiRARn, Charles. On the Organs of Vision and Nervous System in the Em- 

 liryo of Ascidia. 



Proceedings lioston Societi/ of Xafitral Histori/, iv, 30-31, 1851. 

 Views on the oculiforni spot in embryo representing the nervous system o{ Ascidia. 



18. 



1851. GiRARD, Charles. Die Planaricii mid Nemertinen Nordamerikas. Xordamc- 

 rircanischer Monatshericht fur Xaliir and Heilkitnde. Keller and Tiedeman, 

 I'hiladelphia, ii, 1851, p. 1. 



I'L.WAKIAX.S. 



Phagocata, Leidy 1 



Phagocata gracilis, Lcidy : 1 



Dendrocn'luiii pnlcherrlmuin, ( i rd 2 



Dendroeo'luni aiqx'rbuui, ( ird 2 



Planaria tigriiia, G rd 2 



Ddgesia, Grd 2 



Dugesia gonocephaloiden, Grd 2 



