1 66 EISEA^ [Vol. II. 



i about one-half, with the lateral margins strongly converging. 

 Dorsal pores, most anterior one on xi, first distinct one on xiii. 

 Spermiditcal pores on xix in line with setae a. Spermathecal 

 pores viii, ix, posterior to setae a, in line with ab. Prostate 

 pores xviii, xx, in line with setae b. Ovidiical pores near median 

 line, surrounded by a zone. Setae, sigmoid, with numerous fine 

 bars ; a-a about yV> d-d, | the whole periphery ; b-c is shorter 

 than a-a ; a-b, shorter than e-d; a-b, y^ as long as b-c; a-b, 

 slightly shorter than c-d. Setae b in xix is present, a is absent 

 or present. Penial setae rudimentary or very small, in the body 

 wall of xviii and xx. SpermatJiecal setae differentiated and 

 ornamented in viii and ix. Clitelluiu ring-shaped in xiii-xvii, 

 saddle-shaped in xviii. Genital zone, a quadrangular glandular 

 ventral zone in xviii-xx, in the corners of which lie the prostate 

 pores. The two grooves are curved ventrally. No depressed 

 area and no papillae. Septa, thickened are : 



vi/vii, vii/viii, viii/ix, ix/x, x/xi, xi/xii. 



Gizzards v, vi. Sacculated tJitestine commences in xviii, a dor- 

 sal typhlosole. Dorsal vessel alternatingly double and single 

 in vi-xv. Hearts, four pairs in x-xiii. NepJiridia, megane- 

 phridia, commence in iii. Testes in x, xi. Sperm funnels x, 

 xi. Spej'9n dtccts join, but do not fuse until at the male pore 

 in XX. Sperm sacs, one pair pre-septal in ix, one pair post-septal 

 in xii. Oviducts large. Prostates, two pairs in viii, ix. A large 

 sac-like part and a thinner, irregularly bent, muscular duct ; a 

 small, stalk-like diverticle with a knob-like apex. 

 Habitat. — Florida. 



DiPLOCARDIA RIPARIA SmITH. 



Definition. — Color, brown anteriorly and dorsally, clitellum 

 dull coppery colored. Size, 220-250 mm. Somites, 136-157. 

 Prostofnium. divides somite i by one-half. Dorsal pores, most 

 anterior one on anterior margin of xi, near x/xi. Spermidncal 

 pores, xix. Spermathecal pores, two pairs in viii, ix, anterior to 

 setae ab. Prostate pores, xviii, xx. Oviducal pores, xiv. Setae 

 as in D. communis, no ventral setae ab in xix. Distance 



