6. Chaetognatha. 7. Enter opneusta. 8. Gephyrea. 259 



Sc. Philadelphia. Vol. 9. p. 204 uahe verwaudt imd wahrscheinlich zur selben 

 Gattung gehorig. 



Cupelopagis n. g. Footless. eyeless, without carapace, and totally destitute of cilia 

 or other vibratile structures, or locornotor organs of any kind. The trochal disk 

 has the form of a large oblique cup, which can be either retracted wholly, or 

 pushed up by a constriction of its wide mouth. In the bottom of this cup is the 

 oral aperture, which opens into a very large, loose crop, at the bottom of which, 

 and usually behind the middle of the body, is the inastax. The jaws, which pro- 

 ject into the crop, are composed of 2 sharp, slender hooks, with about 4 slender, 

 straight teeth at the inner base. The stomach is large, and the intestine very 

 small and short , opening on the ventral surface of the body near the posterior 

 end ; Forbes ( :j ) - - bucinedax n sp.; id. 



6. Chaetognatha. 



(Referent: Dr. J. W. Spengel in Bremen.) 



1. Leidy, J., On a new species of Sagitta. in: Proc. Acad. Nat. Sc. Philadelphia, p. 102. 

 Auchin: Ann. Mag. Nat. Hist. (5; Vol. 10. p. 79. 



Leidy (*, fand bei Atlantic City, New Jersey, grofie Mengen von Sagitta falci- 

 dens n. sp. 



7. Enteropneusta. 



(Referent: Dr. J. W. Spengel in Bremen.) 



1. Giard , A., Sur tin type synthetique d'Annelide (Anoplomreis Herrmanni) , commensal 



des Balanoglossus. in: Compt. rend. Tome 95. p. 389 391. 

 *2. , Systematische Stellung von Balanoglossus. in: Bull. Sc. Dep. du Nord. 1881. 



p. 372 378. Auszug in: Journ. R. Microsc, Soc. London. (2) Vol. 2. |p. 194. 

 3. Leidy, J. On Balanoglossus. in: Proc. Acad. Nat. Sc. Philadelphia, p. 93; auch in: 



Ann. Mag. (5) Vol. 10. p. 79. 



Giard (*) fand bei den lies Glenans, nameutlich bei der He du Loch und Saint- 

 Nicolas 2 Balanoglossus- Arten, die er ohne Beschreibung B. Robini und B. sal- 

 moneus beneunt. 



Leidy ( 3 ; fand Balanoglossus aurantiacus am Ufer bei Atlantic City, New Jersey. 



8. Gephyrea. 



(Referent: Dr. J. \V. Spengel in Bremen.) 



1. Bericht iiber die Untersuchungen der Danziger Bucht vom 9. 15. September 1SSO. 



in: 4. Ber. d. Comm. z. wiss. Unters. d. deutschen Meere f. 1S77 1S81. p. 181184. 

 [266] 



2. Caldwell , W. H., Preliminary note on the structure, development, and affinities of 



Phoronis. in: Proc. R. Soc. London. Vol. 34. p. 371383. [263] 



3. Foettinger. A., Note sur la formation du niesoderme dans la larve de Phoronis hippocre- 



pia. Mit 1 Taf. in: Arch. Biologic. Tome 3. p. 679-686. [265] 



17* 



