Table B. 



COMPARATIVE CHART OF SPECIES OF SPARGONOPHILUS. 



To face page 154. 



HnUiat 



length and width 



Set(t 3 and 4 



aUellum 



fubernita puhertatin 



Spermiducal pore. 



Spermttthr 



Sperm-mcs . 



ProDlatea 



Anterior nephridia 



commence in. 



Septal glandn in 



Parietal c<etomic 



gland in Hi 



Blood sinus in the 

 sacculated intestine . 



Hearts . 



Capillaries on the ne- 

 phridia and in the 

 body-wall 



tamesis Benhani. 

 Eugliiud, Thames. 



7 to 10 cm. 



Ventral. 



|xv-ixxv. 



xvii-xxii, ventral to 

 spermiducal pore. 



Between xviii/xix, dor- 

 sal to tubercula puber- 

 tatis; so are the sperm- 

 ducts. 



Slender; one pair in each 

 of somites vii, viii, ix; 

 ventral in line with 

 .3 and 4. 



Eiseni Smith. 

 Illinois River, U. S. A. 



18 to 20 cm. by 2 mm. 



Dorsal. 



Dorsally ixv-xxv; 

 ventrally ^xiv-xxvi. 



ixvii-Jxxii, ventral to 

 the spermiducal pore 

 and to the spermdncts. 



On anterior part of xix, 

 dorsal to the tubercula 

 pubertatis; so are the 

 spermducts. 



One pair in each of so- 

 mites vii, viii, ix, dor- 

 sal in line with .') and 

 4; slender. 



In xi and xii, minutely In xi and xii, minutely 

 lobulate. lobulate. 



Not present. 



iv, V, vi; the posterior 

 are the largest. 



Absent. 



Continnous. 



viii, ix, X, xi; not Riling 

 the ctulomic cavity. 



Very numerous. 



Four pairs in xxiii-xxvi. 



iv, v, vi. Those in iv 

 and v about equal size; 

 the one in vi is very 

 diminutive. 



One pair of glands open 

 in front of ventral setse 

 in iii; distal end ex- 

 tending into iv. 



Continuous. 



In viii, ix, x, xi not fill- 

 ing the ccelom. 



Very numerous. 



Bcnhami n. sp. 

 Tepic, Mexico; 4,000. 



17 cm. by 2} mm. 



Dorsal. 



Dorsally xv-^xxv; 

 ventrally xvii-xxvi. 



(/uatemalensis n. subsp. 

 Guatemala. 



10 cm. by 2 mm. 



Dorsal. 



xvi-xxvi. 



xviii-xxii, ventral to ' Parallel ridges, xviii-xxii 

 spermiducal pore and 

 to spermduct. 



Ou auterior part of xix, 

 dorsal to tubercula pu- 

 bertatis. 



carneua n. subsp. 

 Mississippi River, Iowa. 



9 em. by 2 mm. 



Dorsal. 



Dorsally xv-xxiv; 

 ventrally ? 



Robust, trowel-like, with Robust, trowel-shaped, 



wavy outline; one jiair with smooth outline, 



in each of somites vii, in vii, viii, ix. 

 viii, ix; dorsal. 



xi, xii, less minutely 

 lobulate. 



Four pairs, one each in 

 xxiii-xxvi; a long mus- 

 cular basal duct. 



xii. The first two pairs 

 smaller; the first large 

 pair in xiv. 



iv, v, vi. About equal 

 in size. 



None. 



Continuous. 



viii, ix, X, xi, not filling 

 the ccelom. 



Very few. 



Four pairs in xxiv, xxv, 

 xxvi, xxvii. 



None. 



viii, ix, X, xi, not filling 

 the ccelom. 



Dorsal, one pairin each 

 of somites vii, viii, ix. 

 Apical end globulai-, 

 not trowel-like. 



xi and xii, lobulate, but 

 not minutely so, as in 

 Sp. Eiseni. 



Present; four pairs in 

 xxiii, xxiv and prob- 

 ably in xxv and xxvi. 



iv, V, vi; the one in 

 the smallest. 



None. 



viii, ix, X, xi, completely 

 filling the ctelom. 



Numerous and large; ou 

 the body-wall very nu- 

 merous in the six an- 

 terior somites. 



Smithi u. sp. 



Laguna Puerca, San 

 Pi-ancisco, Calif oruia. 



20 cm. by SJ mm. (or less) 



Dorsal. 



Dorsally ^xvi-xxviii; 

 ventrally xix -xxv. 



xix -xxvii, dorsal to 

 spermiducal pore. 



Between xviii/xix, ven- 

 tral to tubercula pu- 

 bertatis. 



Slender; four pairs (8) 

 in each of somites vii, 

 viii, ix, dorsal and lat- 

 eral; one pair only in 

 vi dorsal. 



xi and xii, more lobulate 

 than in Beuhami, but 

 less so than in Eiseni. 



Three pairs, one each in 

 somites xii, xiii, xiv; 

 no muscular duct. 



In iv, v, vi, vii; about 

 equal in size. 



None. 



Not continuous. 



viii, ix, X, xi, quite small, 

 not tilling the citlom. 



Numerous, giving the 

 nephridia a pink color. 



Sonoma: n. subsp. 

 SonomaValley, California 



25 to 30 cm. by 3} mm. 



Dorsal. 



Dorsally xvii-xxviii; 

 ventrally xvi-xxix. 



xix - xviii, dorsal to 

 spermiducal pore and 

 to spermduct. 



Between xviii/xix, ven- 

 tral to tubercula puber- 

 tatis. 



One pair in vi; two pairs 

 (4) in each of somites 

 vii, viii, ix; not slender. 



xi and xii, more lobulate 

 than Benhami, but less 

 than Eiseni. 



Three pairs in xxii, xiii, 



XIV. 



iv, V, vi, vii, about equal 

 iu size. 



None. 



Not continuous. 



viii, ix, X, xi, quite small, 

 not filling the ccelom. 



Very numerous. 



