1902.] NATURAL SCIENCES OF PHILADELPHIA. 83 



tine is filled with coarse coral and shell sand, the grains of which 

 are frequently upward of .5 mm. in diameter. The ornamentation 

 on the sette is extremely faint. No. 939, 1898; No. 965, Hungry 

 Bay, April 13, 1901; No. 966, Elbow Bay, March, 1901. 



Pheretima scliinardae (Horst) Mich. 



Prof. Verrill remarks upon the great activity (so characteristic of 

 the genus) of this and the next species. When captured they 

 writhe like active lizards, as a result of which most of the speci- 

 mens are broken in two. They occurred imder stones only in the 

 neighborhood of a house said to be 250 years old. The intestines 

 were filled with a very fine reddish eaith. P. schviardce has not 

 previously been i-eported from the Bermudas, and in the West 

 Indian region is known only from the Barbadoes. No. 964, 

 Walsiugham, May 5, 1901; No. 962, 1901. 



Pheretima rodericensis (Grube) Mich. 



This widely distributed species, described by Beddard (under the 

 name of Perichceta dycri) from Jamaica, Trinidad, etc., is repre- 

 sented in the collection by a single example from the Bermudas, 

 to which islands it is new. A peculiarity of the gizzard of this 

 species appears to have escaped notice. The organ in question 

 occupies somite X and a small part of XI. From near its pos- 

 terior end on each side a stout tapering band or column of muscle 

 arises and passes obliquely caudad to the body wall at the setae line 

 of somite XI. These form powerful retractors and dilators of the 

 gizzard, and may be the remains of the septum ^~, as Beddard 

 has suggested in the case of a somewhat similar structure described 

 by him in P. taprobmice, and 

 especially P. bermudensis. A 

 delicate membrane runs from 

 the muscles mesiad and dor- 

 sad to the dorsal blood vessel 

 and appears to be continuous 

 with the peritoneal sheaths of 

 both of these organs. 



The diverticula of the sper- 

 matheca show considerable 

 variation. The foldetl portion 

 becomes successively longer from before backward and at the same 



