Table A. 



COMPARATIVE TABLE OF ALL KNOWN EXTRA- AFRICAN SPECIES OF THE GENUS BENHAMIA. 



To face pase 126. 



Habitat 



Size 



Number soimtes . 



First dorsal pore 

 Proslomium . . . . 



Ctit^llum 



Ptnial set(E 



Common setos . 



Oviducal pore. 



Prostate pores . 



Pharynx . 

 Oizzarda . 



Spermatheca 



Typhlosole. 

 Color 



nana u. sp. 



San Bias. Territory of Te- 

 pic, Mexico, at sea level. 

 Strictly tropical form. 



20 to 30 mm. 



110. Skin strongly pig- 

 mented in anterior so- 

 mites. 



Very swollen and overlap- 

 ping- 



Complete in the central 

 somites, xiii-xx. 



mexicana Eosa. 



Durango, Mexico, 2565 

 metres above the sea level. 

 Temperate form. 



30 mm. 



120. Skiu not pigmented. 



Divides the buccal somite 

 completely ( ? ) 



Complete, xiii-xxi. 



The largest with 12 or Not ornamented (Rosa), 

 more strong bristles. j According to Ude, faintly 



ornamented with 6 thick- 



Calctftrous diverticula . 



Spermsacs 



Spermducls 



Nejihridia 



Distance between the dor- 

 sal couples about eqnal 

 to that between the ven- 

 tral couples. 



SettB 3 and 4 further apart 

 than 1 and 2. 



Two pores, open in front Two pores in front of 



of set* 1 and 2. set!© I and 2 on small 



I papillse.which touch with 



i their bases. 



Not on papillfe. 



Situated very far forward. 

 In viii and is. 



Two pairs in xv and xvi. 



Thicker in xviii, xvii and 

 xvi. 



In three rows on each side 

 of the median line. The 

 posterior ones with ctelo- 

 mic cell - mantle. The 

 nephridia in each somite 

 of about the same size. 

 The nejihridia on each 

 side about equidistant, 

 but the dorsal nephridia 

 are much further apart 

 from the dorsal median 

 line than from the lateral 

 nephridia. Nephridia a 

 open in front of 3 and 4. 



Basal part with one plain 

 diverticulum. Apical 

 part warty and irregular. 



Not on papilla 



Three pairs in xv, xvi and 

 xvii. 



In X and xi. 

 Not enlarged ( ?) 



In three rows on either 

 side, probably all of the 

 same size. Nephridia a 

 correspond to setfe 1 and 

 2. The nephridia on each 

 side are equidistant, and 

 the dorsal nephridia c aie 

 as equidistaut from the 

 dorsal median line as 

 from thelateral nephridia 

 b. With ccelomic mautle. 



Bolavi Miohaelsen. 



Hamburg, at Bergedorf, 

 imported, and Venezuela 



(Ude). 



40 to 60 mm. 



Does not divide buccal 

 segment. 



Incomplete in all seg- 

 ments, xiii-xx. 



The larger seta with five 

 {or eight B) notches on 

 apex; the smaller is spoou- 

 like and slightl}' forked, 

 with no denticulation. 



Those on posterior seg- 

 ments larger. The couples 

 equidistant. 



One single pore on a large 

 median papilla in xiv. 



Never elevated. 



Not forward. 

 Two in somite vii. 



Three pairs in xv, xvi and 

 xvii. 



One pair only in xi. 



In three rows on either 

 side; the anterior ones 

 have no ccelomic mantle 

 like those posterior to 

 the male pore. The two 

 lateral nephridia of equal 

 size; the ventral nephrid- 

 ium is much narrower, 

 but furnished with two 

 separate ccelomic man- 

 tles, the inner of which is 

 smallest. The nephridia 

 are more separated than 

 in B. palmicola. 



The basal part wide, grad- Basal part with a single 



ually changing into the small diverticulum, 



apical part. Single short Apical division not glob- 



diverticulum. ular. 



Very large; begins in xviii. 



Eeddish-brown, even m 

 alcohol . 



Alcoholic specimens color- Dingy flesh-colored alive; 

 leas. clitellum yellowish or pink. 



palmicola u. subap. 



Baja California, Cape Re- 

 gion and Tepic, Mexico, 

 1000 and 4000 feet. 



50 mm. 



90. Not pigmented. 



IV -V. 



Not very pointed. 



Incomplete in all somites, 



xiii-xx. 



The larger seta with four 

 notches, the smaller one 

 spoon-like at apex and 

 forked . 



About equal distance be- 

 tween the dorsal and ven- 

 tral as between the ven- 

 tral couples. 



One pore on a central 

 media papilla. 



Not on papillfe. 



Not forward. 

 Two; both in viii. 



Three pairs in xv, xvi and 

 xvii. 



Not thicker in any so- 

 mites. 



Arranged in three distinct 

 rows on either side of the ! 

 median line. Nephrid- ' 

 ium a consists of two ' 

 unequal parts, the most 

 veutral of which is the 

 smallest. Nephridium a 

 is much larger than the 

 other nephridia. The 

 dorsal nephridia far apart. ' 

 Nephridia a open in front I 

 of 1 and 2. | 



papillata n. sp. 

 Tepic, Mexico. 4000 feet. 



50 to 70 mm. 



125 {largest specimen), 



Divides partly buccal 

 segment; swollen. 



Complete, but ventrally 

 thin, xiii-xx. 



Larger with eight faint 

 notches; smaller with 

 a hair - like sigmoid 

 point. 



Inner couples wanting 

 in xviii, equidistant. 



Two closely approxi- 

 mated pores on a me- 

 dian papilla. 



Each on a large papilla. 



Not forward. 

 Two. 



Three pairs in xv, 

 and xvii. 



octonephra Bosa. 

 Paraguay. 



20 to 40 mn 

 85 to 95. 



In three rows, the pos- 

 terior ones with ccelo- 

 mic mantle. Nephrid- 

 ium a consists of three 

 lobes, each with a sep- 

 arate ccelomic mautle. 

 The inner lobe is much 

 the smallest. The ne- 

 phridia are closer, over- 

 lapping. 



Basal and apical divisions Apical division not glob- 

 globular, equal in size. ular; dorsal part with 

 Single small diverticu- a single diverticulum. 

 Ium. 



Typhlosole present, but Present in xix-xxiv. 

 not very large. 



Beddish flesh when alive. 



Palereddish; nopigment. 



xiii to XX, incomplete be- 

 tween the ventral set^. 



The larger curved, strong- 

 ly curved at apes, and 

 with 6 groups of 2 blunt 

 tubercles, the smaller 

 expanded at apex like 

 a scalpel. 



Strictly paired, all ven- 

 tral; couples equi- 

 distant. 



A single pore on median 

 line in xiv, on a slight 

 swelling. 



In line with veutral setffi. 



Thi'ee pairs in xv, xvi 

 and xvii. 



In xi and xii, two pairs. 



Arranged in four series 

 on either side of the 

 median line; the veu- 

 tral one correspouds to 

 the dorsal set*. 



Basal part pear-shaped; 

 apical part sac - like, 

 basal part with a glob- 

 ular diverticulum di- 

 rected forward. 



malayana Horst. 

 Malay Archipelago. 



95. Skin without pig- 

 mentation. 



v-vi or vi-Tii. 



Continued into the buc- 

 cal segment. 



Complete in the auterior, 

 incomplete in the pos- 

 terior somites, xiii to xx. 



The larger seta with 4 

 broad bristles; the 

 smaller spoon - like, 

 but not forked. 



Distance between dorsal 

 and ventral couples 

 about equal to that be- 

 tween ventral couples. 



Two distinct pores. 



The depression connect- 

 ing the prostate pores 

 concave, with the con- 

 vex part turned toward 

 the median line. An 

 elevated area around 

 the depression. 



The posterior nephridia 

 arranged in 3 groups 

 of delicate tubuli on 

 either side, the iuter- 

 ual ones situated near 

 the dorsal setie. 



Basal part longest and 

 as broad as the apical 

 part, with a narrow di- 

 verticulum. 



fioresiana Horst. 

 Malay Archipelago. 



35 to 40 mm. 



125. Skin without pig- 

 mentation. 



Divides somite I about 

 one-half. 



Incomplete, xiii to 3 



Anterior part much un- 

 dulated, the smaller 

 seta less so; three small 

 bristles at apex of 

 largest seta. 



Distance between a dor- 

 sal and ventral couple 

 about three-fourths of 

 that between the two 

 ventral couples. 



Open in an oval gland- 

 ular aiea, pores opeu 

 separately on line with 

 set* I and 2. 



Not elevated, situated 

 at the cornel's of a 

 square area. 



85. Skin without pig- 

 ment. 



Divides partly the buc- 

 cal segment. 



rugosa n. sp. 



Qodefroyi Michaelsen, 



San Francisco. Califor- Hayti (or New Zealand?) 

 nia, imported, 



30 mm. : 90 mm. by 4 mm. 



118. Skin slightly pig- 174. Anterior part of 

 laented and anteriorly body pigmented, 

 corrugated. I 



Divides buccal somite Divides buccal segment 

 about one-half. somewhat less than J. 



Incomplete in xiii to xxi. | Incomplete in xiii to xx. Incomplete (xiii), xiv-xii 



Undulated, with 1 2 

 {about?) slight dentic- 

 ulations or notches. 

 The form of smaller 

 seta doubtful. 



The four couples are 

 ventral and equidis- 

 tant. 



Largest seta with five Slender, numerous irreg- 

 notches; smaller seta ular notches, giving 

 forked, with prongs of knotty appearance, but 

 equal size. no teeth or bristles. 



Many set* in each sac. 



Strictly ventral. 



Open jointly in a median 

 pore in xiv. 



In 4 couples, all ventral. 



Depressions connecting | Anterior prostate pores | The curved fosse between 



Three pairs. 



Arranged in four longi- 

 tudinal series on each 

 side of the median 

 line. 



pores lunate, with the 

 convex side turned to- 

 wards median line. 

 Area oval, not square; 

 a ridge borders the 

 grooves. 



Two in vi and vii. 



XV, xvi and xvii. 



Basal part the longest, 

 uarrow; single pear- 

 shaped diverticulum. 



Alcoholic specimens col- 

 orless. 



A network of delicate 

 tubules anteriorly 

 spread over the body 

 area, except for a nar- 

 row dorsal and veutral 

 median line. Posteri- 

 orly arranged in four 

 rows on either side of 

 median line, and fur- 

 nished with ccelomic 

 mantle. 



Basal part longest and 

 very narrow, with a 

 narrow diverticulum 

 situated near the con- 

 traotiou. 



elevated on papillie 



Not forward. 

 In vii and viii. 



Three pairs in xv, 

 and xvii. 



Arranged in four rows 

 on either side of me- 

 dian line. Posterior 

 nephridia with coelo- 

 mie mantles . Neph- 

 ridia of nearly the same 

 size. Neph. d and d 

 about equidistant as 

 a and a. The most 

 ventral part of nephrid- 

 ium a not covered by 

 mantle. Clitellar ne- 

 phridia much larger 

 than those anterior of 

 clitellum. 



Apical part smallest. 

 Both parts much flat- 

 tened. Very small di- 

 verticulum. 



the pores, with the con- 

 vex side turned towards 

 the ventral median line. 

 The anterior prostate 

 the largest. 



Three pairs. 



Alcoholic specimens dis- 

 colored. 



Plectorephric condition, 

 but not known in detail, 

 except that they cover 

 the whole of the body- 

 wall except a narrow 

 strip dorsally and ven- 

 trally. Stronger in the 

 clitellar somite, where 

 they form a thick cov- 

 ering. 



Spermathecip with no 

 distinct diverticula, but 

 the smaller basal part 

 with irregular warty 

 protuberances. Anterior 

 spermathecfb the larg- 

 est. The apical part sac- 

 like, larger and thin- 

 walled. The basal part 

 shorter. 



Anterior part reddish; 

 posterior part gray. 



