Novobrachylepis, OZDIKMEN, 2010

NOVOBRACHYLEPIS ÖZDIKMEN, 2010

A m e n d e d d i a g n o s i s (m o d i f i e d a f t e r K a r p e n k o & Gulyaev, 1999): Small cestodes with gradual maturation. Scolex with rudimentary rostellum. Proglottides acraspedote, initially wider than long, gravid longer than wide. Suckers expanding far beyond margins of scolex. Osmoregulatory canals without transverse anastomoses. Genital pores dextral. Cirrus-sac long, crosses midline; cirrus armed. Internal seminal vesicle absent, external seminal vesicle elongate. Testes three, in a triangle, one poral and two antiporal. Vaginal sphincter present. Seminal receptacle indistinct. Ovary trilobed. Vitellarium entire, postovarian. Uterus initially horseshoe-shaped, in gravid proglottides sacciform. Asian part of the Palaearctic.

KEY TO THE SPECIES OF THE GENUS MATHEVOLEPIS 1a. Number of proglottides more than 6 ............................................................................................................. 2

1b. Number of proglottides 6 or less ....................................................................... Mathevolepis petrotschenkoi

2a. Each series contains 9–13 proglottides ..................................................................... Mathevolepis skrjabini

2b. Each series contains 2–6 proglottides ........................................................................................................... 3

3a. Vaginal sphincter present .............................................................................................................................. 4

3b. Vaginal sphincter absent................................................................................................. Mathevolepis macyi

4a. Cirrus-sac crossing aporal osmoregulatory canals .......................................................................................5

4b. Cirrus-sac not crossing aporal osmoregulatory canals................................................................................. 6

5a. Cirrus-sac M-shaped, 320–360 long........................................................................ Mathevolepis ketenchievi

5b. Cirrus-sac inverted V-shaped, 143–204 long ............................................................... Mathevolepis alpina

6a. Cirrus-sac, S-shaped, 170–210 long, reaching aporal osmoregulatory canals ......... Mathevolepis larbicus

6b. Cirrus-sac straight, 125–150 long, not reaching aporal osmoregulatory canals .......... Mathevolepis junlanae

Type species: Novobrachylepis morosovi (Karpenko, 1993) Özdikmen, 2010 [syn.: Mathevolepis morosovi Karpenko, 1993 ; Brachylepis morosovi (Karpenko, 1993) Karpenko & Gulyaev, 1999 ].

Other species: Novobrachylepis sorextscherskii ( Morozov, 1957) Özdikmen, 2010 [syn.: Cucurbilepis sorextscherskii Morozov, 1957 , Cucurbilepis sorex Morozov, 1957 ; Mathevolepis sorextscherskii ( Morozov, 1957) Gulyaev, 1991 ; Brachylepis sorextscherskii ( Morozov, 1957) Karpenko & Gulyaev, 1999 ); Soricinia longisegmentalis Sawada & Kobayashi, 1994 ]. Novobrachylepis triovaria (Karpenko, 1990) Özdikmen, 2010 [syn.: Mathevolepis triovaria Karpenko, 1990 ; Brachylepis triovaria (Karpenko, 1990) Karpenko & Gulyaev, 1999 ]. Novobrachylepis gulyaevi (Kornienko & Lykova, 2005) Özdikmen, 2010 (syn.: Brachylepis gulyaevi Kornienko & Lykova, 2005 ).

Remarks: Karpenko & Gulyaev (1999) established the genus Brachylepis for cestodes from shrews with gradual maturation of the strobila ( Fig. 3C). However, Özdikmen (2010) has established that the name Brachylepis was preoccupied and, therefore, Brachylepis was renamed as Novobrachylepis . Uterus development in Novobrachylepis follows a pattern similar to that also seen in Mathevolepis and Ditestolepis , namely the transformation of the initially horseshoe-shaped young uterus into ring-shaped and finally, into sacciform ( Korneva et al., 2010; Korneva & Kornienko, 2014).