GLYCERIDAE 117 



the ventral cirrus is pointed and obliquely directed downwards appears to be variable, 

 and is at any rate difficult to distinguish except within wide limits. The bristles, on the 

 other hand, are very uniform in size and show no differences between the middle 

 bristles of the ventral ramus and the rest. 



I am inclined to regard G. copitata and G. lapidum as one species. 



Glycera tesselata, Grube. 



Ehlers, 1868, p. 654, pi. xxiv, figs. 2 and 33-34. 

 Augener, 1918, p. 394, pi. v, fig. 131, text-fig. 49. 



St. 283. 14. viii. 27. Off Annobon, Gulf of Guinea. -75 to I'mile N 12° E of Pyramid Rock, 

 Annobon. 18-3001. Gear DLH. One specimen. 



Remarks. A single specimen measuring 19 mm. by 2 mm. including the feet. I am 

 unable to add anything to the already existing accounts of this species. 



Glycera convoluta, Keferstein. 



Fauvel, 1923, p. 383, fig. 150 a-h. 



Glycera tridactyla, Schmarda, Augener, 1918, p. 386, pi. v, figs. 142-143, text-fig. 47, with 



synonymy. 



St. 4. 30. i. 26. Tristan da Cunha. 36° 55' 00" S, 12° 12' 00" W. 40-46 m. GearDL. Bottom: 

 stones. Three specimens. 



Remarks. The specimens from St. 4 are all in bad condition: the largest measures 

 128 mm. by 7 mm., including the feet, at its broadest part. 



The gill begins on the 12th chaetiger and in the anterior segments reaches slightly 

 beyond the end of the bristles : in the hinder segments it is considerably longer. The 

 feet consist of two pointed anterior lips, an upper posterior lip resembling in size and 

 shape the upper anterior lip and a shorter rounded lower posterior lip. There is a 

 triangular ventral cirrus. The small button-like dorsal cirrus is set low down just above 

 the foot. The papillae and the supports of the jaws are of the usual shape for the species. 

 The lips of the foot and especially the ventral cirrus are more prominent than those 

 figured by Augener for his South-West African specimens: and in this relation 

 Augener separates G. africana, Arwidsson, from the present species on the ground that 

 the pedal lips and ventral cirri are more pointed and prominent in the former species, 

 and regards G. ajricana as the tropical representative of G. convoluta, which occurs in 

 the more temperate zones to the north and south. 



I find it hard to believe that the distinction between the two species is valid, for in 

 the shape of their feet the examples from Tristan da Cunha seem to be nearer to 

 G. ajricana than to G. convoluta. Augener claims that G. tridactyla, Schmarda 1861, 

 is the same as G. convoluta, Keferstein 1862. I prefer to retain the familiar name. 



