308 Notes frdm the Gatty Marine Laboratory. 



stolon of fifty-eight segments with the head well developed, 

 the body filled with eggs from the third segment to within 

 twenty of the tail. Its swimming-bristles were developing. 

 From the fourteenth segment of other examples a male bud 

 depended, with or Avithout natatory bristles and altered or 

 unaltered intestine, according to the df^velopmeut of the 

 spermatozoa. In the sexual buds there were many red 

 points on tlie ventral surface, and the segmental organs 

 were developing. The French author is inclined to think 

 with Langerhans that the^. 7nacrophtha(ma and A. luxurians 

 of Marenzeller refer to the same form. 



Southern also considers ^4. luxurians, Marenzeller, synony- 

 mous with this species, the only difference being that 

 A. humrians has small reddish-brown eyes, svhereas in this 

 the eyes are large and red. 



Autolytus brachycephala, Marenzeller, is another species 

 from the west coast of Ireland {Southern). The head has 

 four large eyes, occasionally with additional specks. The 

 tentacular cirri and cirri of the second segment are longer 

 than the following. The reddish-violet pharynx has thirty 

 marginal papilJse. Each segment has a double row of 

 pigment-grains. The dorsal cirri are alternately long and 

 short. 



Autolytus punctatus, De St. Joseph, comes both from 

 Plymouth and the west coast of Ireland. The head is of 

 moderate size, the anterior eyes large, the lenses projecting 

 in front, the smaller posterior pair having the lenses directed 

 posteriorl3^ The body is colourless, except for a faint tinge 

 of orange. Each segment, except the buccal, bears a double 

 transverse row of small greyish glands. The proboscis has 

 twelve obtuse denticulations anteriorly, alternating with 

 another twelve pointed processes. The feet are typical. 



Autolytus edwardsi, De St. Joseph, likewise was procured 

 both at Plymouth and the west coast of Ireland. Four eyes 

 occur behind the slender tentacles. The length of the bud 

 is about 1-1 mm., and it has a longitudinal streak of orange 

 on each side of the dorsum in the nurse-stock ; the 

 appendages of the head and the first three segments have 

 orange tips. The dorsal cirrus of the second segment is 

 long, that of the third much shorter, whilst the following 

 are nearly equal. The proboscis has twenty-four small 

 denticulations and the reddish proventriculus is elongate, 

 occupying segments 7-9. 



De St. Joseph observes that he occasionally met with 

 an Autolytus which he could not distinguish from this 



