Thysanoteuthis rhombus

Rhomboid squid

Maximum lifespan

10.2 mo

SeaLifeBase record

mtDNA size

20,545 bp

RefSeq NC_058301.1

GC content

33.76%

Whole genome

Non-coding

1,603 bp

Including the D-loop

Where Rhomboid squid sits among 2,335 species

Whole-genome GC content against maximum lifespan. Rhomboid squid has the 2,324th longest lifespan of them.

This species
All other species

Plot other mtDNA features with this species highlighted

Base composition

Whole genome20,545 bp

GC skew (G − C) / (G + C): −0.271
AT skew (A − T) / (A + T): +0.063

Life history

Maximum lifespan: 10.2 months

Lifespan from SeaLifeBase · SeaLifeBase record

About this record

Lifespan source: SeaLifeBase v26.06
Based on: an estimate, not an observed animal
Data quality: low
Licence: CC BY-NC 4.0
Status: New in build 2
In the database since: build 2 (2026-11-13)

The lifespan value is for non-commercial use only; the genome data is not restricted by it.

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq

Whole genome20,545 bp

Protein-coding15,011 bp

12S rRNA977 bp

16S rRNA1,405 bp

All tRNA1,553 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Thysanoteuthis rhombus genes

ND1NADH dehydrogenase subunit 1	935 bp	41.1%	21.4%	11.1%	26.4%	37.54%	−0.407	+0.315
ND2NADH dehydrogenase subunit 2	1,041 bp	32.8%	34.2%	11.9%	21.1%	33.05%	−0.279	−0.022
COX1Cytochrome c oxidase subunit I	1,533 bp	26.5%	34.4%	16.4%	22.8%	39.14%	−0.163	−0.130
COX2Cytochrome c oxidase subunit II	690 bp	33.3%	31.9%	14.2%	20.6%	34.78%	−0.183	+0.022
ATP8ATP synthase F0 subunit 8	156 bp	41.7%	32.7%	6.4%	19.2%	25.64%	−0.500	+0.121
ATP6ATP synthase F0 subunit 6	693 bp	29.0%	38.7%	10.8%	21.5%	32.32%	−0.330	−0.143
COX3Cytochrome c oxidase subunit III	780 bp	25.4%	33.7%	17.6%	23.3%	40.90%	−0.141	−0.141
ND3NADH dehydrogenase subunit 3	354 bp	28.0%	35.6%	15.0%	21.5%	36.44%	−0.178	−0.120
ND4LNADH dehydrogenase subunit 4L	297 bp	44.8%	26.3%	7.7%	21.2%	28.96%	−0.465	+0.261
ND4NADH dehydrogenase subunit 4	1,365 bp	41.8%	23.9%	10.5%	23.8%	34.36%	−0.386	+0.272
ND5NADH dehydrogenase subunit 5	1,704 bp	42.3%	24.4%	11.2%	22.2%	33.39%	−0.329	+0.269
ND6NADH dehydrogenase subunit 6	507 bp	45.4%	24.9%	7.9%	21.9%	29.78%	−0.470	+0.292
CYTBCytochrome b	1,140 bp	42.1%	20.2%	14.6%	23.1%	37.72%	−0.223	+0.352
12S rRNA12S ribosomal RNA	977 bp	38.9%	31.7%	9.7%	19.7%	29.38%	−0.338	+0.101
16S rRNA16S ribosomal RNA	1,405 bp	38.1%	31.5%	10.1%	20.2%	30.32%	−0.333	+0.095

Codon usage

Counts per codon, darker is more frequent

Gene

3,731 codons in all protein-coding genes. Grouped with the Invertebrate mitochondrial code (NCBI table 5).

Phe F8.3%

UUU222

UUC88

Leu L15.3%

UUA216

UUG115

CUU71

CUC24

CUA103

CUG42

Ile I8.0%

AUU213

AUC86

Met M7.2%

AUA157

AUG112

Val V7.3%

GUU102

GUC27

GUA66

GUG76

Ser S9.5%

UCU113

UCC33

UCA34

UCG13

AGU45

AGC26

AGA54

AGG36

Pro P3.4%

CCU79

CCC16

CCA26

CCG5

Thr T4.4%

ACU83

ACC34

ACA43

ACG6

Ala A4.2%

GCU77

GCC38

GCA32

GCG10

Tyr Y4.3%

UAU92

UAC67

His H2.3%

CAU48

CAC36

Gln Q1.6%

CAA40

CAG20

Asn N4.3%

AAU95

AAC67

Lys K2.4%

AAA58

AAG31

Asp D2.2%

GAU49

GAC33

Glu E2.1%

GAA38

GAG41

Cys C1.9%

UGU55

UGC16

Trp W2.8%

UGA69

UGG36

Arg R1.4%

CGU17

CGC2

CGA24

CGG11

Gly G6.7%

GGU65

GGC18

GGA74

GGG94

Stop 0.3%

UAA7

UAG5

Genome map

43 annotated features in NC_058301.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding18
rRNA2
tRNA23

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (33.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 43 features as a table

Annotated features of Thysanoteuthis rhombus (NC_058301.1)
Feature	Type	Start	End	Length	Strand	GC
COX3	Protein-coding gene	1	780	780 bp	+	40.9%
tRNA-Lys	Transfer RNA	788	856	69 bp	+	–
tRNA-Arg	Transfer RNA	862	928	67 bp	+	–
tRNA-Ser	Transfer RNA	953	1,021	69 bp	+	–
ND2	Protein-coding gene	1,022	2,062	1,041 bp	+	33.1%
COX1	Protein-coding gene	2,034	3,566	1,533 bp	+	39.1%
COX2	Protein-coding gene	3,570	4,259	690 bp	+	34.8%
tRNA-Asp	Transfer RNA	4,259	4,325	67 bp	+	–
ATP8	Protein-coding gene	4,327	4,482	156 bp	+	25.6%
ATP6	Protein-coding gene	4,484	5,176	693 bp	+	32.3%
ND5	Protein-coding gene	5,196	6,899	1,704 bp	−	33.4%
tRNA-His	Transfer RNA	6,900	6,966	67 bp	−	–
ND4	Protein-coding gene	6,966	8,330	1,365 bp	−	34.4%
ND4L	Protein-coding gene	8,324	8,620	297 bp	−	29.0%
tRNA-Thr	Transfer RNA	8,628	8,694	67 bp	+	–
tRNA-Ser	Transfer RNA	8,695	8,759	65 bp	−	–
CYTB	Protein-coding gene	8,759	9,898	1,140 bp	−	37.7%
ND6	Protein-coding gene	9,905	10,411	507 bp	−	29.8%
tRNA-Pro	Transfer RNA	10,413	10,479	67 bp	−	–
ND1	Protein-coding gene	10,480	11,414	935 bp	−	37.5%
tRNA-Leu	Transfer RNA	11,415	11,482	68 bp	−	–
tRNA-Leu	Transfer RNA	11,496	11,563	68 bp	−	–
16S rRNA	Ribosomal RNA	11,564	12,968	1,405 bp	−	30.3%
tRNA-Met	Transfer RNA	12,991	13,061	71 bp	−	–
tRNA-Tyr	Transfer RNA	13,073	13,136	64 bp	−	–
tRNA-Trp	Transfer RNA	13,138	13,203	66 bp	−	–
tRNA-Gly	Transfer RNA	13,213	13,278	66 bp	−	–
tRNA-Glu	Transfer RNA	13,284	13,360	77 bp	−	–
COX3	Protein-coding gene	13,930	14,709	780 bp	+	40.9%
tRNA-Ala	Transfer RNA	14,758	14,824	67 bp	+	–
tRNA-Asn	Transfer RNA	14,842	14,908	67 bp	+	–
tRNA-Ile	Transfer RNA	14,910	14,974	65 bp	+	–
ND3	Protein-coding gene	14,975	15,328	354 bp	+	36.4%
COX1	Protein-coding gene	15,404	16,936	1,533 bp	+	39.1%
COX2	Protein-coding gene	16,940	17,629	690 bp	+	34.8%
tRNA-Asp	Transfer RNA	17,629	17,695	67 bp	+	–
ATP8	Protein-coding gene	17,697	17,852	156 bp	+	25.6%
ATP6	Protein-coding gene	17,854	18,546	693 bp	+	32.3%
tRNA-Phe	Transfer RNA	18,573	18,637	65 bp	−	–
tRNA-Val	Transfer RNA	18,784	18,852	69 bp	−	–
12S rRNA	Ribosomal RNA	18,853	19,829	977 bp	−	29.4%
tRNA-Cys	Transfer RNA	19,831	19,897	67 bp	−	–
tRNA-Gln	Transfer RNA	19,917	19,984	68 bp	−	–