Isopoda Prepared by Anna Johns and Graham Fenwick (2007)

07/11 Quick guide to New Zealand freshwater Isopoda prepared by Anna Johns and Graham Fenwick (2007)

YES Are the uropods folded Valvifera Idoteidae under pleotelson, forming Austridotea a ventral operculum? NO go to separate Quick guide

uropods ventral view

Cruregens fontanus Anthuridae uropods dorsal view YES

Is the body elongate & YES cylindrical, not capable of rolling into a ball; Are the uropods always coxal plates small, not flattened: ventral & overlapping? operculate or lateral & blade-like? NO

Phreatoicidea NO go separate Quick guide

rod-like uropods Flabellifera dorsal view YES Sphaeromatidae go to separate Quick guide Is the body sub- uropods always rod cylindrical, usually large shaped: terminal or (up to 10-20 mm long), lateral, specimens small, pleotelson helmet-shaped, 2-3 mm laterally compressed; uropods attached ventrolaterally?

NO Asellota

This Quick guide was funded by Terrestrial and Freshwater Biodiversity Information System (TFBIS) programme number 194 . 07/11 Quick guide to Austridotea species of Chaetiliidae (Isopoda: Valvifera) prepared by Anna Johns and Graham Fenwick (2007)

pleonites Is the distal margin of uropods the uropods rounded; last pleon segment with YES two pairs of clefts maxilliped palp 4 moveable (sutures)? (segments 4-5 fused) rounded (Stewart, Campbell, Pitt Is & NO southern South I.)

A. lacustris uropods distal margin straight, transverse; last pleon segment with one pair of clefts (sutures)

pleotelson uropods

YES straight Is the pleotelson pleonites rounded?

maxilliped palp segmented (segments 4-5 separate) (Otago Peninsula) A. benhami NO

pleotelson pointed

pleonites

pleotelson maxilliped palp 5-segmented; last pleon segment with one pair of clefts (sutures) (Stewart & Pitt Is, A. annectens southern South I. to Banks Peninsula)

This Quick guide was funded by Terrestrial and Freshwater Biodiversity Information System (TFBIS) programme number 194 . 03/08 Quick guide to Phreatoicidea (Isopoda) prepared by Anna Johns and Graham Fenwick (2007) 1-4 spines lateral ridge of pleotelson

Notamphisopus go to separate Quick guide YES body segments 3-4 deeper than long

Phreatoicus Are body segments 3-4 usually go to separate Quick deeper than long; lateral ridge guide on the pleotelson with 1-4 protelson spines just anterior to the uropod insertion, enlarged pereopod segment 2 posteroventral spine on uropod peduncle beneath insertion of uropod rami is toothed?

body segments 3-4 deeper not than long gnathopod article 6 NO

YES spines absent from lateral ridge of pleotelson Is gnathopod article 6 noticeably widened distally; pereopods 5-7 segment 2 slender, not wider at mid point than proximally; pleotelson longer than deep?

NO

gnathopod segment segment 2 6

pereopod

protelson Neophreatoicus (1 sp., N. assimilis ) This Quick guide was funded by Terrestrial and Freshwater Biodiversity Information System (TFBIS) programme number 194 . 07/11 Quick guide to species of Phreatoicidea (Isopoda) prepared by Anna Johns and Graham Fenwick (2007)

Notamphisopus Is only one spine present at YES N. percevali posteroventral corner of uropod penduncle, beneath insertion of rami?

NO

Are the two spines, YES N. dunedinensis subequal in length? equal spine length NO YES N. benhami

Are the peduncle YES Is antenna 1 spines unequal in flagellum 2nd last length, both apically unequal spines segment longer than toothed or spined? preceding segments ? pleotelson ridge

NO NO only 1 dorsal spine on lateral N. kirkii pleotelson ridge Is maxilliped palp segment 3 ovate, almost as wide as YES N. littoralis long? segment 3

NO segment 3 Is maxilliped palp N. flavius segment 3 ovate, longer than wide? pereopod 7 pleon side segment 3 broad Phreatoicus plate medially Are the ventral & posteroventral P. orarii YES overhanging margins of pleon side plates with lobe even fringe of setae; pereopod 7 segment 3 slightly widened in pereopod 7 middle, with a small posterodistal segment 3 not lobe overhanging segment 4? broadened medially NO P. typicus

This Quick guide was funded by Terrestrial and Freshwater Biodiversity Information System (TFBIS) programme number 194 . 07/11 Quick guide to species of Sphaeromatidae (Isopoda: Flabellifera) prepared by Anna Johns and Graham Fenwick (2007)

Are uropod exopod 0.3x exopod length endopod length; endopod 0.3X endopod distally tapered, groove of pleotelson terminally subquadrate; B. millari margin lives in surface waters: eyes well developed, body usually well pereopod pigmented? endopod tapered distally uropod dense setal endopod YES fringe NO

Is the pleotelson margin with a narrow, open exopod length groove; uropod endopod 0.5X endopod mediodistally acute, not rounded? uropod exopod 0.5x endopod length; endopod with NO endopod scarcely acute cusp tapered distally, with anterolateral margins of B. mollicopulans pleon mediodistal acute pereonite sutures cusp; cave dwelling: eyes reduced, body BilistraBilistra weakly pigmented

YES pleotelson margin Is the entire specimen up to 10mm; pereonite 1 longer than 2, anterolateral margins not produced to enclose head, head extending well forward pleotelson margin without of eyes; prominent sutures on groove; uropod endopod B. cavericola the pleon; dense setal fringe narrowly rounded distally; on posterior margins of the cave dwelling walking legs (pereopod)?

NO uropod endopod rounded

pereopod

setal fringe lacking whole animal <3 mm long; pereonite 1 encompassing the head, head extending only slightly forward of pereonite Makarasphaera amnicosa lateral margins anterolateral margins pleon of pereonite enclosing lacking head sutures This Quick guide was funded by Terrestrial and Freshwater Biodiversity Information System (TFBIS) programme number 194 . 07/11

Guide to the typical body plan of Isopoda prepared by Anna Johns and Graham Fenwick (2007)

Neophreatoicus assimilis (Chilton 1884)

Reference Chilton, C 1894 The subterranean Crustacea of New Zealand with some general remarks on the fauna of caves and wells Transactions of the Linnean Society of London (2 nd Series Zoology) 6(2) 163-284, pls 16-23.

This Quick guide was funded by Terrestrial and Freshwater Biodiversity Information System (TFBIS) programme number 194 .