410 G. WYNHOFF. 



3. Tubulanus miniatus {Biirger). (Burger. Monogr. Taf. I, Fig. 8.) 

 Three individuals of a Nemertean which I consider identical with 



the one specimen described by Biirger from Naples, were dredged on 

 the Eame-Eddystone Grounds on July 11th. Depth 45-55 m. 



By its size this species is easily distinguished from T. iwlymorphus, 

 the length of the biggest specimen being 3 cm., at a breadth of IJ mm. 

 Moreover, the colour of the body is a darker orange than T. polymorplms 

 possesses at Plymouth ; the rounded head is not so broad, and is not 

 so sharply separated from the body ; it has a white patch at its tip. 

 Generally the dorsum has a more intense colour than the ventral side ; 

 the dorsal and ventral regions are sharply separated by a line which is 

 particularly well seen in preserved specimens. Alcohol specimens do 

 not take the peculiar marking described by Hubrecht for T . iMymorjplius, 

 Side organs are probably present. 



Geographical distribution : One specimen known from Naples 

 (Biirger). 



4. Tubulanus nothus {Biirger). (Biirger. Monogr. Taf. I, Fig. 12.) 

 Locality : Eum Bay, Bridge and Queen's Grounds, each one specimen ; 



from Asia Shoal and Millbay Pit, each three specimens. 



This species, which resembles T. annulatus very closely, but is of 

 smaller size, is a shallow - water form at Plymouth. The colour 

 is darker, especially on the back. The ventral side has an orange- 

 brown tint, which continues in a dirty yellow at the head and the tail. 

 On the dorsum a black pigment seems to be developed, which gives the 

 whole animal a dirty brown appearance. The head is colourless with 

 two characteristic black, semicircular pigment spots. It is not broader 

 than the body. The first white ring is present directly behind the 

 colourless head ; the median dorsal line takes its origin from it ; it is 

 one of the broader belts which very often quite characteristically 

 break up into two thin rings. The lateral lines originate from the 

 second belt ; a ventral longitudinal line was present in most of my 

 specimens. Side organs exist ; they are to be found as small orange 

 pits at the dorsal side of the lateral lines, just in front of the fourth 

 circular line. Forty rings or more are present, which show in part the 

 arrangement described by Biirger. 



The presence of a median ventral line is the only difierence between 

 the Naples specimens and my species. Sometimes the ventral line, 

 however, was very inconspicuous, even invisible in the living specimens, 

 while all alcohol material, even those specimens I collected as un- 

 doubtedly T. nothus, show clearly the presence of this line. Therefore 

 I do not hesitate to regard my species as identical with T. noth^is, 

 Biirger. 



