Pleurocryptella Bonnier 1900
Creators: name: Williams, Jason D.
name: Boyko, Christopher B.
name: Marin, Ivan N.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Bopyridae
Pleurocryptella

description: Key to females of species of Pleurocryptella Bonnier, 1900 *
1. Uropods surrounded by distolateral margins of pleomere 5........................ P. wolffi Bourdon, 1972b
– Uropods not surrounded by distolateral margins of pleomere 5........................................................ 2
2. Uropods shorter than pleotelson, scarcely projecting beyond distolateral margins of pleomere 5 ... 3
– Uropods longer than pleotelson, projecting well beyond distolateral margins of pleomere 5 .......... 5
3. Total body length and width subequal; pronounced digitations on pereomeres of long side.............. .................................................................................................................... P. formosa Bonnier, 1900
– Body much longer than wide............................................................................................................. 4
4. Posterior margins of all pereomeres smooth........................................... P. fimbriata Markham, 1974
– Posterior margins of pereomeres 5–7 wavy.............................................................. P. altalis sp. nov.
5. Antenna with 6 segments...................................................................... P. crassandra Bourdon, 1976
– Antenna with 5 segments................................................................................................................... 6
6. Body strongly tapering from anterior to posterior, head not extending beyond anterolateral margins of pleomere 1 ..................................................................................................................................... 7
– Body gradually tapering from anterior to posterior, head extending beyond anterolateral margins of pleomere 1 ......................................................................................................................................... 8
7. Lobes of barbula distally acute, outer lobe approximately three times as long as inner lobe ............. ............................................................................................................. P. laevis (Richardson, 1910) **
– Lobes of barbula distally rounded, outer lobe approximately twice as long as inner lobe.................. ................................................................................................................... P. superba Bourdon, 1981
8. Pleotelson and uropods ventral to pleomere 5; pronounced digitations (tubercles) on pereomeres of short side.................................................................................. P. infecta tuberculata Bourdon, 1976
– Pleotelson and uropods between pleomere 5 in ventral view; lacking pronounced digitations (tubercles) on pereomeres........................... P. infecta infecta Nierstrasz & Brender à Brandis, 1923
* Pleurocryptella latimellaris (Nierstrasz & Brender à Brandis, 1931) not included in the key.
** Data for P. laevis based on Bourdon (unpublished MS).
Key to males of species of Pleurocryptella Bonnier, 1900 *
1. Midventral tubercle on pleomere 7.............................................................. P. wolffi Bourdon, 1972b
– No midventral tubercle on pleomere 7 .............................................................................................. 2
2. Midventral tubercles low, broad and extending between pleopods on pleomeres 1–4...................... 3
– Midventral tubercles small, semispherical and medially situated ..................................................... 4
3. Lateral margins of pleomeres strongly curled ventrally, covering pleopods............ P. altalis sp. nov.
– Lateral margins of pleomeres slightly curled ventrally, not covering pleopods.................................. .................................................................................................................... P. formosa Bonnier, 1900
4. Midventral tubercles only on pleomeres 1–3....................................................................................... ......................................... P. laevis (Richardson, 1910) ** & P. infecta tuberculata Bourdon, 1976 ***
– Midventral tubercles on more than pleomeres 1–3............................................................................ 5
5. Midventral tubercles on pleomeres 1–4.................................................. P. fimbriata Markham, 1974
– Midventral tubercles on pleomeres 1–5............................................................................................. 6
6. Pleon markedly narrower than pereon........ P. infecta infecta Nierstrasz & Brender à Brandis, 1923
– Pleon not markedly narrower than pereon......................................................................................... 7
7. Antenna with 7 segments...................................................................... P. crassandra Bourdon, 1976
– Antenna with 5 segments........................................................................... P. superba Bourdon, 1981
* Pleurocryptella latimellaris (Nierstrasz & Brender à Brandis, 1931) not included in the key.
** Data for P. laevis based on Bourdon (unpublished MS).
*** Based on published and unpublished data, the males of P. laevis and P. infecta tuberculata are indistinguishable.
description: Published as part of Williams, Jason D., Boyko, Christopher B. & Marin, Ivan N., 2020, A new species and depth record of bopyrid (Crustacea, Isopoda) from a squat lobster in the Kuril-Kamchatka Trench, pp. 122-133 in European Journal of Taxonomy 724 on pages 127-130, DOI: 10.5852/ejt.2020.724.1165, http://zenodo.org/record/5627580