Acrolobus, Bostrom, 1986

Amirzadi, Negin, Shokoohi, Ebrahim, Eskandari, Ali & Abolafia, Joaquín, 2012, Description of Acrolobus longigubernaculum sp. n. (Nematoda, Rhabditida, Cephalobidae) from Iran, the second species of the genus, Zootaxa 3407, pp. 61-68 : 67-68

Genus Acrolobus

(Family Cephalobidae , Subfamily Acrolobinae)

The genus Acrolobus contains two distinct species (see Table 2 and Fig. 4 ):

Type species.

A. emarginatus ( de Man, 1880) Boström, 1986

Cephalobus emarginatus de Man, 1880

Acrobeloides emarginatus ( de Man, 1880) Thome, 1937

Acrobeles (Acrobeloides) emarginatus ( de Man, 1880) Schneider, 1939 Panagrobelus emarginatus ( de Man, 1880) Andrássy, 1984

Other species

A. longigubernaculum sp. n.

Key to species identification

1. Body length less than 700 μm; spicules short, less than 25 μm; gubernaculum short, less than 10 μm......... emarginatus

- Body length more than 700 μm; spicules long, more than 25 μm; gubernaculum long, more than 10 μm.................................................................................................. longigubernaculum sp. n.

Figures

FIGURE 4. Posterior end of Acrolobus species. A. emarginatus (de Man, 1880) Boström, 1986. A: Female. B: Male. A. longigubernaculum sp. n. C: Female. D: Male.

Tables

TABLE 2. Morphometrics of Acrolobus species. Measurements in μm (except L, in mm).

Species	n	L	a	b	c	c'	V		Stoma length	Excretory pore – ant. end
A. emarginatus	Ƥ	0.60	25	4.0	14	3.0*	65*		?	?
	25ƤƤ	0.45–0.62	23–30	3.5–4.3	13–15	3.0*	63– 66		10–11	96*
	1633	0.43–0.51	25–31	3.4–3.9	13–17	2.2*	-		12.5*	93*
	?ƤƤ	0.45–0.62	23–30	3.5–4.3	13–15	2.2–2.5	63– 66		10–11	?
	?33	0.43–0.51	25–31	3.4–4.0	13–17	1.8–2.0	-		?	?
A. longigubernaculum sp. n.	11ƤƤ	0.72–0.98	23–28	3.5–5.3	14–19	2.4–3.2	61–65		12–16	118–138
	533	0.73–0.84	21–28	3.6–4.5	15–18	2.0–2.3	-		14–16	121–128
continued.
Species	n	Pharynx	Tail	Spermatheca /		Postvulvar	sac /	Country		Reference
		length		Spicules		Gubernaculum
A. emarginatus	Ƥ	?	43*	?		?		Germany		de Man, 1884
	25ƤƤ	129–149	32–41	29–46		17–25		Sweden		Boström, 1985
	1633	122–139	30–35	18–21		8–10
	?ƤƤ	120–150	32–40	?		?		Hungary		Andrássy, 2005
	?33	?	30–35	17–21		8–10
A. longigubernaculum sp. n.	11ƤƤ	154–213	47–58	26–46		27–49		Iran		Present paper
	533	188–203	47–50	26–30		12–16

*Measured from the illustrations or other measurements.