146 Prof. M‘Intosh’s Notes from the 
Some had the posterior region of the body distended with 
large ova. None had buds, but a band or two of large free 
ova in mucus occurred, as in the specimens at St. Andrews 
and as is also found in Spirorbis. Some of the tubes of 
mucus contained larve with three pairs of bristles, a powerful 
prototroch, two large eyes, and a segmented body. 
A commensal Crustacean was found in the calcareous 
tube. 
PLYMOUTH. 
: No. of Serrations of 
Operculum arate anterior basal web of Gonads*. 
(none). (tips). bristles. collar-bristle. 
ante Slight enlargement. 7  <About12. Ripe sperms. 
34 No distinct enlarge- 6 Fewer than 4057 
ment 12. 
Larger example.. Enlargementgreater. § About 10? obi 
March. 
Young specimen . Enlarged tips. 8 yy) or more 
Very young ae 8c 8 34 ; 
Woman tere. sts Enlarged tips. 8 
June. 
WW TEU Viet «> ts, 7 7 ” 
Fairly adult .... = 8 Fe F uine 
” ” 8 ” Ova 
” ” 8 ” Ova 
,, (short post. , 
region) .. . 9 * atske 
Fairly large .... 9 i “3 Ova 
», with bud. F 8 - 42 
E; 5 Slight. 8 ; iG 
GuUERNSEY.—JULY, 
Branchie. Anterior Collar-bristles. R : 
Opercula. . Sausage-tips. bristle-tufts. Basal comb. geckos 
1 7 pairs. About 1 dozen RAL 
serrations. 
2 opercula. wiris's 5. About 1 dozen. one 
Y 4 0 Ga rA Pr Branchie __pig- 
mented brown 
(or red ?). 
1 only visible. a oe 6 Ps Bak 
re 2 or more. 8? . 1 apparently On shells. 
with fewer 
teeth. 
2 opercula, Seis 8 Ya mee 
2 7 see On shells. 
a ” eeee 
* The male elements were present in the majority with ova. 
