GEPHYEEA. 
Ferm. 9 
GEPHYEEA. 
41. Drasche, R. von. Zur Kenntniss des Baues der Segmental-organe 
der Echiuren. Zool. Anz. iii. pp. 617-519. 
42. Greet, R. Ueber den Ban der Echiuren. Arch. f. Nat. xlvi. 
pp. 88-93 (from SB. ges. Marburg, May, 1879). 
43. . Die Echiuren {Gephyrea armata). Nova Acta Ac. L.-O. Nat. 
cur. xli. 
[Not seen by the Recorder.] 
44. Hatschek, B. Ueber Entwickeluugsgeschichte von Echiurus und 
die systematische Stellung der Echiuridse {Gephyrei chcetiferi). 
Claus’s Arbeiten, iii. pp. 45-79, pis. iv.-vi. 
45. Spengel, J. W. Beitrage zur Kenntniss der Gephyreen. ii. Die 
Organisation des Echiurus pallasi. Z. wiss. Zool. xxxiv. pp. 460-538, 
pis. xxiii.-xxvi., 2 woodcuts. 
Hatschek (44) found a number of developing stages of a larva not 
altogether similar to that described by Salensky ; he is of opinion .that 
its history is conclusive as to the Annelidan affinities of Echiurus ; he 
would arrange the Annelidan stem thus : — 
1st Class — Archiannelides (Polygordius). 
2nd „ Chcetopodes. 
1st Order — Saccocirridce. 
2nd „ PolychcctcB. 
3rd „ Echiuridfc. 
4 th „ Oligochoitcc. 
3rd „ IJirudinea. 
App. : (4th „ ) Sipunculacea. 
Greef (42) finds that in Thalassema mcehii, sp. n., the water-tubes are 
completely shut off from the coelom ; in it there are three pairs of genital 
tubes, and the author thinks that in all Echiuri the first pair are true 
segmental organs. 
Daniellsen & Koren describe the following new genera and species 
(N. Mag, Naturw. xxvi. pp. 44-66, pis. i. & ii.) : — 
Bonellid.®. Hamingia, g. n. Body cylindrical, mouth at the anterior 
extremity, towards the ventral surface. Anal orifice in the centre of the 
posterior extremity. A slightly projecting crescentiform fold surrounds 
the mouth (rudiment of the proboscis). In the anterior part of the 
ventral surface, there are two long cylindrical papillae, at the apex of 
which there is a round aperture for the efferent duct of the uterus. No. 
setae. //. arctica, sp. n., 72° 27' N. lat. 20° 51' E. long. 
Saccosoma, g. n. Body claviform. Anterior part cylindrical, opaque, 
with a round buccal aperture at the free extremity ; the posterior part, 
containing the whole of the intestinal canal, is nearly spherical, trans- 
parent, terminating in an opaque cone, at the apex of which is the anus. 
No hooks. S, vitreum^ sp. n., 63° 22' 5" N. 6° 29' W. 
SiPUNCULiDJE. Phascolosoma lilljeborgi, sp. n. 
