Acanthonyx petiverii " H. Milne Edwards 1834 Author Aspe, Nonillon M. Department of Natural History Sciences, Graduate School of Science, Hokkaido University, N 10 W 8, Sapporo 060 - 0810, Japan. E-mail: nonillon _ aspe @ yahoo. com nonillon_aspe@yahoo.com Author James, Samuel W. Department of Biology, University of Iowa, Iowa City 52242 - 1324, Iowa, USA. E-mail: samuel-james @ uiowa. edu samuel-james@uiowa.edu text Zoological Studies 2016 55 8 141 149 http://dx.doi.org/10.5281/zenodo.8060301 journal article 10.6620/ZS.2016.55-08 1810-522X 13307452

Table 2. Comparison of species in the Pheretima urceolata group

Characters	P. urceolata Horst, 1893 *	P. acia n. sp.	P. dinagatensis n. sp.	P. enormis n. sp.	P. hamiguitanensis n. sp.	P. lantapanensis n. sp.
Length	70-80	33-47	65	305-347	81-90	> 58
Width x, xx	4, 4	1.2, 1	2.5, 3	13.5-15.5, 13-16.5	3-3.5, 3.5-4	2.5, 3
Dorsal pigmentation	?	brown	Reddish brown stripes	Purplish brown	brown	brown
Segment equator	?	pigmented	unpigmented	unpigmented	unpigmented	pigmented
Segments	92-104	87-94	127	110-147	108-111	?
1st dorsal pore	12/13	12/13	11/12	13/14	12/13	11/12
Setal gaps D, V	+, -	-, -	-, -	+, -	+, -	+, -
Sperm. pore distance	0.45	0.21	0.31	0.17	0.07	0.38
Male pore distance	0.1	0.24	0.24	0.14	0.12	0.23
Setae between openings	?	3	12-14	7	2	8
Setae vii, xx	20, 42	26-35, 29-38	39, 43-48	45-46, 75-80	38-42, 44-47	30-39, 31-36
Gizzard	viii-?	viii-x	viii-x	viii-x	viii-x	viii-x
Intestinal origin	xvi	xv	xiv/xv	xv	xv/ xvii	xv
Caeca	xxvii-xxiii/xxi	xxvii-xxvi	xxvii-xxiii	xxvi-xxiii	xxvii-xxiv	xxvii-xxiii
Prostate	xvii-xviii or xviii	xvii-xviii	xv/xvi-xix	xvi-xix	xvii-xx/ xv-xix	xvi-xvii
Copulatory bursae	?	xvii-xix	xvii-xix	xvii-xix	xvii-xix	xvii-xix
Penes	+	+	+	+	-	-