LOXOSOMELLA — RUTZLER 



per cm 2 . They are white (also when living) with the exception of two 

 blackish, symmetrical, anterior swellings at the level of the budding 

 points; hence, the specific name. Maximum total length is 650ju, the 

 ratio of calyx length to stalk length is approximately 1:1. Ten long 

 tentacles arise from the upwardly directed lophophore and are en- 

 closed by a characteristic collar-shaped membrane. The stalk is only 



Figures 1-3. — Loxosomella bimaculata, new species: 1, posterior view; 2, anterior view 

 showing the pigmented swellings, spicules of the host sponge protruding from stalk 

 and foot; 3, four budding stages demonstrating pigment distribution from the anterior 

 swellings. 



slightly smaller in diameter than the calyx in the region of the stomach. 

 The foot is fleshy and provided with distinct wings. Table 1 shows 

 comparative measurements of 11 specimens. 



The nature of the anterior swellings is not clear. They are placed 

 just above the anterolateral budding points and are covered with 

 a dark granular pigment. They are present in all specimens, including 

 the buds. Very young buds, when growing out of the mother animal, 



