LOXOSOMA LOXALINA AND LOXOSOMA SALTANS, 141 
EXPLANATION OF PLATES 6 and 7. 
Illustrating Mr. Richard Asslieton’s paper on ‘‘Loxosoma 
loxalina and Loxosoma saltans — Two New Species.’^ 
Lettering. 
u. Atrium, b. Bud. b. k. Body-kidney, c.c. Ciliated cell of stomach 
region, ec. ex. External ectoderm of tentacles, ec. o. Ectodermal spike 
or flask-like oi'gans of L. saltans, ec. o/-. Ectodermal organ of L. 
loxalina. ecf. Ectoderm. ecL A'. Ectodermal organs of L. loxalina. 
ect. iv. Ectodermal organ of many cells deeply placed of L. loxalina. 
e-p. Epistome. ex. r. Excretory cells of rectum, ex. gr. Excretory 
gi-anules in rectal cell. d. 1. Dorsal row of large ectodermal cells 
(nervous?), gl. c. Gland-cell (or supporting rod?), g. gonad, g. d. 
Duct of gonad, g. p. Genital papilla, int. Intestine, h. Kidney, k. d. 
Kidney-duct. 1. d. Liver divei’ticulum. 1. k. Lophophoral kidney, ni. e. 
Modified epithelium of atrium, mes. Mesodermal core of tentacle. 
m. Mouth, mu. Mucous cell. n. g. Nerve-ganglia, oes. (Esophagus. 
o. f. Ovarian follicle, obc. Oocyte, p. c. Cell of pancreatic diverticulum. 
p. d. “Pancreatic” diverticulum, r. Rectum, sh. gl. Shell-gland, 
.sd. Stomach, ten. Tentacle, tes. .i* Testis ?. r. Ventral wall of rectum, 
ciliated, vac. Vacuole in rectal cell, vac.' Granule entering vacuole. 
Fig. 1. — Loxosoma loxalina. Preserved specimen seen from the 
ventral surface. The character of the alimentary canal and the position 
of the gonad and excretory organs (?), the nerve ganglia and ectodermal 
organs in their most characteristic form are in "icated. 
Fig. 2. — L . loxalina. Vertical longitudinal section of acoiTespond- 
ing specimen showing the mouth, alimentary canal and anus, v/hich is 
placed near the edge of tlie lophophore. 
Fig. 3. — L. loxalina. — Transverse section through the hrain, oeso- 
phagus and intestine. One of the ectodermal organs has been cut and 
alongside of it the group of cells which are arranged in tiers and are 
probably excretory cells. Part of the reproductive system, iirobahly 
the shell-gland, lies between the brain and oesophagus. 
Fig. 4. — L. loxalina. A section taken transversely so as to cut the 
intestine (int.), the gonad (g.) and the edge of the brain (n. g.). A 
portion of the gonoduct is seen at g. d. running towards a group of 
granular cells {sh. g.). which are probably shell-gland. 
Fig. 5. — L. loxalina. A vertical section through the epistome 
showing the opening of two ducts. One on the epistome maybe excretory 
