TUNICATA OF THE L.M.B.C. DISTRICT. 243 
Island, at low tide, on September 8th, 1888. The species 
was found in October, 1887, at Black Point, Anglesey, 
opposite Puffin Island ; also at Puffin Island in January, 
1888, and on February 17th, 1889. 
Botrylloides albicans (?), Milne-Edwards. 
Some colonies collected on the South Spit, Puffin Island, 
in January and July, 1888, and on September 8th, 1888, 
probably belong to this species, but some of them are of a 
yellower tint than is usual. We find two forms, the one 
of an amber tint and the other more of a chrome yellow. 
They may be distinct species, or possibly only local 
varieties. In the first mentioned the ascidiozooids and 
the marginal bodies are of an amber colour, the common 
cloacal apertures are four-lobed and are bordered with 
lemon yellow, and the ascidiozooids have sixteen tentacles 
of four sizes. 
Sarcobotrylloides sp. (?). 
A colony found on the South Spit, Puffin Island, in 
March, 1888, seems to belong to this genus, separated in 
1883 by von Drasche from Botrylloides. The specimen 
was not sufficiently examined when alive to warrant its 
description here as a new species. Only two species of the 
genus are at present known, S. swperbum, von Drasche, 
from the Adriatic, and S. wyvillii, Herdman, from the 
Faroe Channel. 
Family. DIsToMID2. 
Distoma rubrum, Savigny. 
This beautiful species is common under stones at low 
water mark and below it on the South Spit, Puffin Island. 
On September 8th, 1888, I collected colonies up to 5 cm. in 
diameter containing ova, embryos and large tailed larve. 
Some of the large colonies are only slightly attached by 
16-2 
