San Ignacio pupfish (Cyprinodon bobmilleri) fish species and information / pictures of San Ignacio pupfish - Cyprinodon bobmilleri

San Ignacio pupfish (Cyprinodon bobmilleri) fish species information

Scientific Name
Cyprinodon bobmilleri

Common Name
San Ignacio pupfish

Biology
Dorsal soft rays (total): 11-12; Anal soft rays: 11 - 12. In both sexes, specially in females, are peculiar combination of speckled and barred sides, Body shape rhombic; snout acute. Dorsal fin of female overlaid by melanophores, with 2 - 3 distal and 2 - 3 basal spots, parallel to body, seldom with hints of posterior ocellus as seen in pupfishes. Pectoral fins reach middle of dorsal fin base when depressed; cover most of the pelvic length. Male anal fin is pointed, nearly reaching caudal base; caudal band narrower than eye. Mouth slightly higher on profile than in C. variegatus complex. Caudal peduncle short, 20.7 - 25.9% SL (Ref. 39345).

Classification

Classified By

Lozano-Vilano & Contreras-Balderas, 1999

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Pupfishes (Cyprinodontidae)

Distribution

Region

North America

Distribution

North America: known only from the type locality, Ba?o de San Ignacio, Linares, Nuevo Leon, Mexico, on the San Fernando basin.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

32 °C

Water Temperature To

34 °C

Depth From - meters

0 m

Depth To - meters

1 m

Zone

benthopelagic

Environment

Freshwater; brackish; benthopelagic; depth range 0 - 1 m (Ref. 38030)

Trophic Level

2.95 s.e. 0.32 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

3.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (30 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated