Cylindroiulus

Read, Helen J., 2005, A revision of the Cylindroiulus distinctus Lucas group from north Africa, with descriptions of six new species (Diplopoda, Julida, Julidae), Journal of Natural History 39 (18), pp. 1491-1532 : 1519-1522

Cylindroiulus parIJoalgerinus sp. n

( Figures 48–52 )

Material studied. Holotype: Algeria: „, ANNC in National Park of Djurdjura, Wilaya de Tizi Ouzou, Djebel Du Djurdjura , 1420 m, pitfall traps in Cedrus atlantica forest with a north aspect, 17 May 1993, Abrous leg. ( ZMUC donated by Dr Abrous-Kherbouche) . Paratypes: 2♀ (details as above).

Total material examined. 3 (1 „).

Diagnosis. A small species. Gonopods resembling C. algerinus but brachite simpler and a clear, though thin, connection between the brachite and solenomere. Very small projection Y but no X.

Descriptiυe notes. Male and one female so badly broken that it is impossible to tell which segments belong to which millipede. Therefore length, diameter and segment numbers could not be measured or counted with any accuracy. „ (holotype): diameter possibly 1.5 mm but this could be the body of a female, other specimen unable to measure, 32 ocelli in nine rows; ♀ (paratype): 32 ocelli in eight rows; ♀ (paratype): 51+3, 43 ocelli in nine rows, length 30 mm, diameter 2.1 mm.

Colour. Yellow/orange with prominent glands but this is probably a result of the preservation.

Eyes. Largely readable.

Telson . With no dorsal projection. Single row of setae on anal valves varying from three to six pairs. Usually one pair of setae on each of ventral scale and telson .

Oυerall body shape. Very slight anterior constriction, slight posterior attenuation.

Legs. Length of leg compared to body height unable to be measured due to damaged specimen. Accessory claw surpasses claw by 35%.

Male sexual characters

Mandibular stipites. Smoothly but not greatly expanded.

First pair of legs. Hook shaped.

Gonopods ( Figures 48–52 ). Promerite rather short and squat. Mesomerite considerably shorter than promerite. Paracoxal process absent. Paracoxal rim of medium height. Solenomere bent laterally and anteriorly at apex, with no projection X. Brachite with prominent ‘‘beak’’ pointing posteriorly. Broader at the apex in lateral/mesal views than posterior/anterior. No winged or hooded structure at the apex. Very small projection Y. Brachite linked to solenomere by very thin lamella. Phylacum small in extent and narrow.

Etymology

The name reflects the similarity in gonopod structure to C. algerinus but the smaller body size.

Comments

The gonopods of this species superficially resemble C. algerinus . They differ in the structure of the brachite, the lamella link between the brachite and solenomere, and the shape of the pro- and mesomerite. The species is also much smaller than C. algerinus and has a shorter accessory claw.

Figures

Figures 48–52. Gonopods of C. parυoalgerinus from Algeria, National Park of Djurdjura, Wilaya de Tizi Ouzou. (48) Lateral view. (49) Mesal view. (50) Posterior view. (51) Anterior view. (52) Anterior view of posterior gonopods. Scale bars: 0.1 mm.