Mesocriconema crenatum
 (Loof, 1964) Andrássy , 1965
Photo Gallery- Costa Rica passionfruit

Dimensions:
    Females, freshly relaxed (n = 11):  L = 0.27-0.33 mm; a = 8-12; b = 3.4-4.2; V = 92-94; stylet = 41-48 u.
    Females, mounted (n = 14): L = 0.21-0.32 mm; a = 7-10; b = 2.9-4.3; c = 27-56; V = 44-6091-94; stylet = 38-46 u.
    Males, freshly relaxed (n = 4): L = 0.35-0.39 mm; a = 17-21; b = ?; c = 12-15; spicules = 28-29 u.
    Males, mounted (n = 11): L =  0.33-0.40 mm; a = 20-24; b = 4.2-4.7; c = 11-14; spicules = 25-29 u.
    Female, holotype, freshly relaxed: L = 0.31 mm; a = 12; b = 3.6; V = 93; stylet = 41 u.  Mounted: L = 0.23 mm; a = 10; b = 3.8; c = 27; V = 4693; stylet = 38 u.
    Male, allotype, freshly relaxed: L = 0.39 mm; a = 21; b = ?; c = 15; spicules = 29 u. Mounted:  L = 0.38 mm; a = 21; b = 4.5; c = 13; spicules = 20 u.

    Female.  Body very small, generally curved 45-90O when killed.  Annules uninterrupted at lateral field; posterior margins conspicuously crenate.  Annules retrorse except anterior ones.  Anastomoses 0-3, generally in posterior half of body.  Posterior part of body convex-conoid towards rounded terminus.
    Head not offset.  First annule with labial plates and four sublateral lobes which are wholly isolated from one another.  Spear robust with broad basal knobs.  Oesophagus typical for genus.  Total number of body annules 75-84.  Excretory pore on 22nd-24th from anterior end, vulva on 6-8th from behind, anus on 4-6th from behind.  Vulva opening sideways; anterior lip simple.  Ovary relatively short, with conspicuous spermatheca 10-14 u in diameter.

    Male.  Body tapering little anteriorly, head end broadly rounded.  Excretory pore indistinct.  Hemizonid one annule long.  Lateral field with four longitudinal lines.  Total number of body annules 145-170.  Tail tapering towards rounded terminus.  Fine annulation extends around tail tip.  Spicules curved, cephalated proximally, pointed distally.  Gubernaculum small.  Bursa envelops tail.

(Description- Loof, 1964)

This species included in the Criconematid Project

DNA Sequences Obtained
NID 183021 Costa Rica- passionfruit